(1) For demodulation, PLL frequency discrimination is adopted.

(2) Demodulation is the critical technology in communication system.

(3) Recommended PFM to modulate and demodulation.

(4) An edge filter demodulation of fiber Bragg grating (FBG) displacement measuring scheme using long period grating (LPG) is reported and demonstrated.

(5) It is flexible for the modulation and demodulation by software, and it may realize different modulation mode through the airborne downloading , therefore it suits the different communication systems.

(6) The design and principle of the phase-sensitive demodulation and the sawtooth wave generator are presented in detail.

(7) Optical modulation and demodulation implementation scheme in mobile atmospheric laser communication system are designed.

(8) A novel method of edge filter demodulation for fiber Bragg grating that use wavelength tunable laser was proposed. Real-time monitoring of the multiple points' dynamic strain could be achieved.

(9) At customer terminal station finish undergoing demodulation and decoding, the addressable control terminal station (customer terminal) carry out and offer service or shut off the user TV signal.

(10) This paper presents a fast demodulation algorithm of a 2FSK signal based on short time cycle autocorrelation.

(11) FM receiver through demodulation , the frequency signals into sound signals.

(12) In demodulation type transponder the demodulated baseband signal accompanied by noise is used for further modulation and retransmission.

(13) Phase Modulation and Demodulation complete source code can be directly used by the test.

(14) High frequency modulation and phasic demodulation technologies are also used to improve the resolution in dynamic measurement.

(15) Finally the system is proved throught the microwave instruments and SWR, and the author make a customer used interface whose name is the demodulation system based on software radio.

(16) As a solution COSTAS is used in the improved simulation model to complete the synthesis of the frequency of the carrier and in the end the correct demodulation and dispread spectrum results are made.

(17) On the basis of building the ship radiated-noise model(), the mathematical expectation expressions of ship radiated-noise demodulation spectrum harmonic clan feature were educed.

(18) Its main tasks include sync signal abstracting, Y/C separation, color subcarrier recovery, color demodulation and output format conversion.

(19) Two kinds of signal processing methods for heterodyne interferometer, phase locked frequency demodulation and combinatorial frequency demodulation are presented in this paper.

(20) The former is concerned on software for AT89C51 and other hardware which include FSK demodulation circuit soft keyboard circuit and so on.

(21) Frequency-shaping pulse is one of the essential modulation parameters for the demodulation of Continuous Phase Modulation(CPM), and it is determined by the pulse shape and pulse length.

(22) The technology of link adaption (LA), automatic gain control (AGC) and 8PSK demodulation is the core technology in GSM/EDGE baseband system.

(23) By DEMON we can get more and stabler line spectrum information than by LOFAR, which is to make power spectrum analysis of signal directly. Several demodulation methods are introduced and compared.

(24) Correction coefficients can be received based on statistic average when importing a test signal. Then quadrature demodulation errors are realized.

(25) The closed-form expressions for CCK modulation performance were derived from correlation demodulation according to the complementary code properties and CCK modulation regulation.

(26) Part 2 puts forward the circuits of pulse and IF carrier generation and square pulse amplitude modulation and demodulation.

(27) With some well drilling engineering in Changqin Oilfield as the background, this paper introduces a pattern identification method for signal demodulation with mud pulse testing slope sensor.

(28) Demodulator separately extracted falling and rising edge in input signal, and then synthesized digital signal to a digital circuit, achieve high-speed demodulation circuit.

(29) The detection circuit uses alternating current capacitance bridge method and the principle is based on the correlated demodulation.

(30) Combining to devise radio telemetry receiver, the application of digital down converter and frequency demodulation in software radio is discussed and analysed.

(31) A sinusoidal was used as a bias phase modulation wave and the open loop demodulation used the weak signal detection technique.

(32) According to frequency spectrum transfer characteristic of modulation and demodulation, we think the position measurement noise is Gaussian narrowband noise.

(33) This paper summarizes the essential scheme considerations of signal plane division method as an algorithm for digital error processor in demodulation loop and presents several valuable circuits.

(34) F-P tunable filter demodulation system is choosed by FBG landslide monitoring system.

(35) We designed sampling , an RTL level simulation testbench and a FPGA platform for the chrominance demodulation.

(36) The baseband processor includes synchronization, acquisition, and complementary code keying (CCK) demodulation.

(37) Morlet - like wavelet cluster based method for band-pass filtering and envelope demodulation is described.

(38) Technology of digital modulation and demodulation plays an important role in digital communication system.

(39) This method analyzes the cyclostationary of pretreated signals. In order to realize quadrature demodulation, the 4th-order cyclic cumulant is used to estimate carrier frequency and phase deviation.

(40) The error correcting and decoding, interleave and and DMT modulation and demodulation are analyzed in detail.

(41) We report Edge Filter Dynamic Demodulation Method Based on Filter Bragg Grating.

(42) A new demodulation method of fiber Bragg grating(FBG) sensing signal, which is by making use of the monotonic decline section of an amplified spontaneous emission (ASE) light source, is proposed.

(43) Demodulation to end its focal point is usually in the vicinity.

(44) The difficulty to choose the band-pass filter can be avoid by the adaptive resonance demodulation method presented here.

(45) The task is based on ST's SDTV channel decoder solution with a highly integrated single-chip fully digital QAM demodulation STV0297.

(46) Synchronization is a very important problem of intermediate-frequency(IF) digital modem. Performance of demodulation system mainly depends on the synchronization technology.

(47) Taking PCM/DPSK for example, the effects by Doppler velocity during the course of bit synchronization and demodulation are analyzed.

(47) is a sentence dictionary, on which you can find good sentences for a large number of words.

(48) This paper studies the modulation technique and demodulation technique of the self-mixing interference semiconductor laser vibrometer.

(49) A new type of respiratory inductive plethysmography (RIP) has keen designed based on digital demodulation technique with equal relative error.

(50) Ich habe die Modulation und Demodulation des analogen und digitalen Signal gelernt.

(51) Channel estimation is a research focus; it is the fundament of coherent detection, demodulation and equalization.

(52) The calculating result in practical engineering shows that the transient effect on demodulation probability of error is very low even when the system frequency hopping is at middle-high speeds.

(53) Thus, high quality demodulation and demodulation suitable for mobile reception are realized.

(54) In the situation of modulating signal is square wave, the result of demodulation frequency is presented in imitation, and other parameter's jitter in this situation is also described.

(55) With a minimum of mathematics and an engaging, highly rewarding style, Bloomfield provides in-depth discussions of harmonic regression, harmonic analysis, complex demodulation, and spectrum analysis.

(56) The structure of band pass RAKE receiver and the model of demodulation are depicted.

(57) Phase errors is introduced in echo demodulation process because of the frequency synchronization error, and then, the final focus result will be deteriorated.

(58) To overcome the frequency offset between the mixing signal and modulating signal in PGC demodulation, an additional (A/D) channel in DSP system is used to sample the modulating signal.

(59) This paper deal with the DPSK demodulation method based on adaptive algorithm.

(60) In the sense circuit, the angular-speed signal is obtained by synchronous demodulation of the angular-speed modulated signal of the gyroscope with the synchronous signal.

(61) We introduced the accomplished structure of the OFDM demodulation, focusing on the computational process of the valid data extraction.

(62) In chapter 5, demodulation models of many modulation systems are established. Square loop Model is established to detect carrier.

(63) The call signal will be sent to the control of response machine by circuit coupling, demodulation, and voltage comparator.

(64) Several demodulation schemes for split phase coded PSK signals are described in this paper.

(65) Under certain conditions, combining the polyphase filtering structure of decimation filter, put forward an optimum design method of quadrature demodulation receiver, which owns decimation structure.

(66) Channel distortion caused by multi-path fading and doppler frequency shift brings a great challenge to the correct demodulation in non-cooperative communication.

(67) After demodulation, receive dates will be sent to PC by CAN bus or the serial port.

(68) A Morlet - like wavelet clusterbased method for bandpass filtering and envelope demodulation is described.

(69) Normally demodulation frequency is inside the limits that a few hertz this to hundreds of megahertz.

(70) By movingperiod sine wave model , the precise demodulation of AM signal wave is achieved.

(71) The coherent signal processing is universal adopted in the modem radars. The key on signal processing is how to achieve high resolution base band digital quadrature I/Q demodulation.

(72) As a key technology in digital quadrature demodulation system, the direct IF sampling filter with sharp cutting-off transition band can improve the performance of demodulation system.

(73) It solves the problem of modulate and demodulation of differential signal and achieve data and power signal communication in coaxial-cable.

(74) The receiving circuit is composed of amplification circuit, variable gain amplification circuit, demodulation circuit, filter circuit and A/D translation circuit.

(75) Receiver including the high-frequency amplifier, mixer circuit, demodulation circuit, shaping circuit and decoding circuit.

(76) This paper also touches upon the features of differential modulation and demodulation.

(77) Based on the theory of SDR, first, NAVTEX signal is sampled by band-pass sampling theory. Second, sampled signal is transferred into DSP for filtering, demodulation and location.

(77) try its best to collect and make good sentences.

(78) An ultra-wideband quadrature demodulation receiver data acquisition system is designed for the purpose of UWB signal processing .

(79) It describes clearly the software of vector signal demodulation, including the frequency offset calculation, magnitude and group-delay compensate, and pulse shaping filter.

(80) The shot noise and thermal noise with homodyne demodulation technique is given in this article. And phase noise induced with different time delay is also analyzed.

(81) The method was superior to the other edge filter demodulation methods, because it was available for the multi-points measurements of real-time strain.

(82) A amplitude shift keying(ASK) demodulation method based on adaptive filtering was discussed in this paper.

(83) In this paper, we employ wavelet networks for demodulation of DS CDMA(direct sequence code disivion multiple access) signals in a multi access environment.

(84) Also, man - machine interactive interface for modulation - demodulation is preliminary designed and studied.

(85) Blind equalization is one of the key technologies of blind demodulation to compensate the channel distortion.

(86) By replacing the traditional wavelength demodulation with optical power detection technique, the demodulating process is simplified and immune to temperature variation.

(87) It uses orthogonal detection method for coherent demodulation; and uses an improved digital correlator for de-spread.

(88) A simple and efficiency method for the Manchester asynchronism demodulation is introduced based on the analysis of code pattern.

(89) As a sensor element, fiber optic and grating transformed the information into reflecting wavelength shift. It also named wavelength demodulation which is immune for light power waving and system loss.

(90) A transfusion monitor system is designed based on infrared technology with modulation and demodulation.

(91) The key technology of high-frequency medical EIT system is presented in detail, i. e. the signal generator, voltage controlled current source, analog switch array and signal demodulation.

(92) Based on the analysis to signal detection theory of FOG, the analog demodulation circuit and digital logic circuit etc were designed, and prototype test was carried out.

(93) Incorporating 8PSK. demodulation system, Interpolator, Timing Error Detector, Loop Filter and Numerically Controlled Oscillator in DTTL Algorithm are analyzed in detail.

(94) Finally, the antenna, ASK modulation, power supply of the tag, load impedance modulation, demodulation, power supply sensor and HF power amplifier were realized.

(95) In the digital mobile communication, with the effect of modulation, transmission channels and demodulation, the received signal ineluctably has some distortion.

(96) An automatic tracing centric wavelength demodulation system based on the edge filter which can measure the wavelength of the narrow-band back-reflected spectrum FBG is described.

(97) Secondly, a DSTFT(Discrete Short Time Fourier Transform )-based demodulation method for the 2FSK signal is studied and algorithms for symbol synchronization and symbol decision are analysed.

(98) Symbol synchronization is used to confirm OFDM symbol's initiative position for accurate demodulation.

(99) Experimental results indicate that the timing scheme satisfied the requirement of miniaturized three - FOG to modulation - demodulation signal.

(100) It is clearly clarified the conceptions of quadrature modulation, quadrature exciting, quadrature receiving, and quadrature demodulation in the MRI system.

(101) Compared with in vitro AM modulation modes, the demodulator adopts the diode peak envelope detector for demodulation.

(102) Through judgement sampling, blind demodulation is realized prior information of received MPSK signals.

(103) Finally, the implement method of communication system applied noncoherent demodulation technique with frequency discriminator is discussed.

(104) The effect of in-phase and quadrature channel errors on digital quadrature demodulation is analyzed and an optimal digital filter design method is selected.

(105) A full digital demodulation scheme is proposed for HF QAM signal.

(106) This paper is mainly on the FSK demodulation algorithms suitable for frequency hopping signal interception.

(107) The 1-bit signal values may be are arranged into a signal value word that is bitwise logically combined with a carrier demodulation template word to produce a demodulated signal value word.

(108) The detection technique of phase generated carrier ( PGC ) demodulation method with laser frequency modulation is introduced.

(109) The digital demodulation is realized by use of recent digital signal processing technology.

(110) The system distortion is inevitable in ultra - wide - band quadrature demodulation receiver cons i sting of analog devices.

(111) In this paper, operational principle of CWDM linear sidebands filtering demodulation was elaborated and, experimental verification was made.

(112) In order to make a research on the software radio, this thesis focuses on key techniques for radio receiver including: DDC technology, the channelization model, modulation and demodulation algorithm.

(113) The system G/T value, broad-band, threshold of demodulation, video property, accompanying sound property as well as MTBF are discussed in the paper.

(114) The strain sensitivity was demarcated by experiment using spectrum character of ASE demodulation.

(115) Quadrature demodulation can distinguish negative frequency so it can overcome position uncertainties on imaging data space.

(116) This paper presents the implement of the all-digital symbol timing recovery using the DTTL Algorithm over 8PSK demodulation system.

(117) The scheme of complex demodulation, using parallel architecture, was provided.

(118) The traditional digital signal demodulation method that realizes more complex has the problems of carrier recovery, symbol synchronization and so on.

(119) Traditional way of AM signal demodulation is envelope detector or synchronism detector.

(120) The research contents mainly consist of symbol rate estimation, carrier frequency offset estimation, modulation recognition and blind demodulation.

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