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单词 Quadrature
例句
1) The quadrature that Lacan describes is that of masculine identity.
2) Offset Quadrature Amplitude Shift Keying?
3) So why are opposition and quadrature so significant?
4) Lange was used for quadrature coupler.
5) Set up quadrature cells in the domain.
6) The quadrature coherent detector is widely used in the field of signal processing since it can reserve all information about the complex envelope of IF signal.
7) On the basis of quadrature theory and dynamic characteristics, the amplitude detection and control theory for HRG (hemispherical resonator gyro) is studied in this paper.
8) The phase noise impacts significantly the performance of high-order QAM (Quadrature Amplitude Modulation) demodulator, of which the carrier recovery loop proves to be the bottleneck.
9) From commonly used equation of calculating plane figure quadrature, formulas of calculating plane figure quadrature by applying curve parametric equation can be deduced.
10) Therefore the generalized numerical quadrature formula with the single node is deduced naturally.
11) This toolkit provides Gaussian Quadrature complete source code, has been tested.
12) The problem of quadrature formula, normalization, symmetrization and peak spreading correction for experimental GPC chromatograms after partial smoothing or fitting a curve is discussed.
13) In the paper, Higher-order Quadrature phase Squeezing of a phase coherent state of a harmonical oscillator in a finite -dimensional Hilbert space is studied.
14) Differential quadrature element method is an alternative numerical solution techniques.
15) The design of a new quadrature VCO(Voltage Controlled Oscillator)is obtained through a cross-coupled double LC oscillator, using the coupling coefficient to control oscillation frequency.
16) Quadrature scheme is a scientific method of arranging multi - factors and multi - standards.
17) Instead, there is an oscillation of meaning between the four poles that make up the Lacanian quadrature.
18) T 755 High precision encoder, 10 mm blind hollow shaft, 125 Khz frequency response, Quadrature output.
19) The results of the studies indicate that the fluctuations of two quadrature components of light can be squeezed periodically, and this squeezability is related to the initial state of the system.
20) Then, the influence of amplitude and phase unbalance of quadrature double channels in radar on MTI performance is analyzed. Finally, a better resolution method is proposed.
21) Correction coefficients can be received based on statistic average when importing a test signal. Then quadrature demodulation errors are realized.
22) It can be shown that the displacement operator can not affect the quadrature squeezing of amplitude in superposition states but can affect the amplitude-squared squeezing.
23) As a result , a. 08 GHz , low phase noise transformer coupling quadrature LC VCO according to themodel.
24) Abstract: In the thesis, optimizing technics of extracting seed oil from Psidium guajava was carried on by single factor experiment and L9(33) quadrature enhancing experiment with Soxhlet extraction.
25) We introduced a new and simple proof of the classical SIMPSON quadrature formula which is frequently applied in calculating definite integrals and best estimation of error is obtained.
26) The errors are classified according to their frequency. The amplitude and phase errors of the LFM signal generators using quadrature modulation technology are mapped into baseband.
27) The Fermi integral was accurately calculated with adaptive Lobatto quadrature in MATLAB,(http:///quadrature.html) a significant digit was enhanced than G.
28) Based on the idea of the Schmidt orthogonalization and the orthogonal chaotic carriers being generated, a chaos-based quadrature modulation communication system is proposed and realized.
29) Quardrature sampling is, in fact, sampling in Radar's echo signal to produce the inphase components I(n) and quadrature components Q(n).
30) Given the stability, error estimate and numerical experiments for the nonlinear equation of second order backward difference(4)Given the weighted of second order convolution quadrature.
31) Super quiescent state problem of anti running device can be solved by applying 3 bend quadrature equation and elementary parameter equation.
32) As a result, a 1.08GHz, low phase noise transformer coupling quadrature LC VCO is finished according to the proposed model.
33) Conclude that the cross-axis coupling coefficients of stiffness between drive and sense direction should be as small as possible to reduce the quadrature error.
34) He did this by charting and the Earth's change of position from opposition to quadrature.
35) The correcting network consists of combination logic circuit and it can correct the gain and phase imbalances and the bias errors of the in-phase and quadrature channels in coherent signal processing.
36) Quadrature coherent detection can reserve all information of the complex envelope of signals, and it is therefore widely used in signal processing.
37) The extraction of the in-phase and quadrature components from a received echo signal is an important problem in the digital beamformer of sonar systems.
38) These are also simulated on computer and the results show that the LPF method is more suitable for the quadrature sampling of wideband IF signal.
39) The maximun overload capacity of the motor depends essentially on the synchronous reactance along the quadrature axis and on the commutation reactance.
40) A half moon is visible at the quadrature of the moon.
41) First of all, it introduces a kind of simple and practical numerical quadrature method for calculating the vibration characteristics of wheel system.
42) Through reform the modulating function of the winding to set up the mathematic model, by which it analyses and calculate the layer coefficient, quadrature error, electrical error.
43) These extensions lead to generalized Gaussian quadrature formulas which have high algebraic precision.
44) Through installing inphase(I) channel and quadrature (Q) channel, the effect of the carrier can be eliminated in NDLL. Therefore, the noncoherent demand of NDLL is satisfied.
45) The matrix method and axial tracing method were applied in the calculation of the measurement of buildings which had quadrature axes.
46) He did this by charting Jupiter's ( and the Earth's ) change of position from opposition to quadrature.
47) The reasons for inducing quadrature error and offset error are analyzed and the expressions of quadrature error and offset error are induced.
48) 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.
49) Due to strong oscillation and slow decay of product term in dual Bessel integration, it is difficult to use ordinary numerical method for the quadrature of dual Bessel.
50) A joint carrier-phase-tracking algorithm based on signal combining is proposed for carrier phase tracking of quadrature amplitude modulation(QAM) signals.
51) The conventional Gauss quadrature is kept in the integral element far away from the inner point.
52) The use of quadrature function curve fitting in excavation volume calculation of earthwork wasdiscussed.
53) The principles of realizing quadrature coherent detector by direct sampling of bandlimited signal are discussed in this paper. They have great practical value in engineering.
54) A test method of torque synchro rotor quadrature axle damping short - loop loss and current was introduced.
55) When it is realized by using the analog devices, the conventional quadrature coherent detector may result in the large image frequency errors.
56) Fundamentals of IF(Intermediate Frequency) bandpass signal sampling and quadrature detection are discussed, especially the coherent mixing LPF method and Hilbert transform frequency-shift method.
57) Multi-level Quadrature Amplitude Modulation is very sensitive to carrier phase noise.
58) The trapezoidal rule is adopted for the quadrature of the memory term and the quadrature error is estimated.
59) In fact, Heisenberg′s uncertainty principle is a special case of entropy uncertainty relation,(http:///quadrature.html) and entropy can be used to measure the quantum fluctuation of the quadrature components of the field.
60) On the basis, the ratio of quadrature error and sense signal are induced when the the principal axes of elasticity of outer-frame and inner-frame rotates a little angle separately.
61) 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.
62) T 764 Encoder, 10 mm hollow through shaft, Quadrature output, Push pull output circuit.
63) The numerical technique of differential quadrature (DQ)method is employed for transient simulation of the interconnect systems in high speed VLSI.
64) 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.
65) 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.
66) In this paper, a new unconventional numerical quadrature with fewer node values is established based on a special nonconforming rectangular finite element.
67) The integral equation can be resolved by numerical quadrature, and the torque of the fictitious pile can be determined.
68) A low-complexity adaptive quadrature amplitude modulation(QAM) scheme was presented to increase throughput for multi-antenna communication system with covariance feedback.
69) Almost all the classical methods of numerical differentiation, numerical quadrature and numerical integration of ordinary differential equations are directly derivable from interpolation formulas .
70) Further analysis shows that the quadrature filtering algorithm is a simplified algorithm of Discrete Fourier Transform ( DFT ) .
71) The paper analyzes the interference rejection of Quadrature amplitude modulation signals in the presence of carrier phase jitter, sinusoidal interference and white Gaussian noise.
72) An ultra-wideband quadrature demodulation receiver data acquisition system is designed for the purpose of UWB signal processing .
73) And an all-optical regenerator design scheme for quadrature phase-shift keying(QPSK) and differential quadrature phase-shift keying(DQPSK) signals was investigated through numerical simulations.
74) A differentially controlled quadrature voltage-controlled oscillator (QVCO) is employed to generate quadrature (I/Q) signals.
75) The implementation of OFDM base-band processing system, characterized by 16-QAM (Quadrature Amplitude Modulation) and 64 sub-carriers, is paid more attention.
76) Quadrature Amplitude Modulation (QAM) is widely applied in modern communications systems. The carrier recovery is one of the key factors, which decides the overall performance of the receiver.
77) QAM (Quadrature Amplitude Modulation) has been widely used in various digital communication systems due to its high modulation efficiency.
78) Quadrature Amplitude Modulation(QAM) is used to transfer signals by digital TV system based on DVB_C standard.
79) By the four boundary conditions and the method of the discrete numerical quadrature, the lengths of the plastic zone, the exit elastic zone and entrance elastic zone are calculated.
80) At last, the paper introduces several practical measures for direct quadrature up-converter optimization based on AD9854 and AD8346, and the experiment results are presented.
81) Simultaneously setting all 8 bits ensures synchronization between in - phase and quadrature signals.
82) In the same way, the ratio of quadrature error and sense signal of Silicon Micromachined Gyroscope which is driven in outer-frame and sensed in inner-frame are also induced.
83) Feher patented Quadrature Phase Shift Keying(FQPSK), which is suitable for deep space communication, is introduced at first.
84) The waveform generator is composed by DSP and quadrature digital upconverter(QDU). DSP is used as main controller to decide the modulation mode and output waveform of QDU.
85) It is clearly clarified the conceptions of quadrature modulation, quadrature exciting, quadrature receiving, and quadrature demodulation in the MRI system.
86) By combining the Gauss quadrature with the calculation technique of matrix exponential function in the precise time-integration method, a new precise time-...
87) The core circuit of local oscillator signal part,(http://) quadrature modulation part and frequency multiplier and amplifier part is designed and implemented.
88) The element-free Galerkin method(EFGM) is improved with partition of unity quadrature(PUQ).
89) Firstly the basic transmitter, including convolutional encoding, interleaving, scrambling, Walsh modulation, quadrature spreading and baseband filtering was studied.
90) The effect of in-phase and quadrature channel errors on digital quadrature demodulation is analyzed and an optimal digital filter design method is selected.
91) Program for using an IBM PC to read quadrature encoders through the parallel port (requires bi-directional port) and display position data on-screen.
92) A neat solution of the quadrature problem can be achieved with the spiral of Archimedes.
93) It is also pointed out that, only after both real part (or co-spectrum) and imaginary part (or quadrature spectrum) of cross spectra between random wind loads of an...
94) At the same time, we refrain mirror frequency effectively with the method of digital quadrature modulation (DQM).
95) The system distortion is inevitable in ultra - wide - band quadrature demodulation receiver cons i sting of analog devices.
96) Extracting the in pulse characters based on direct sampling from IF quadrature coherent detection is proposed.
97) A new variable step-size blind equalization algorithm based on the multi-mode error switch is proposed by considering the characteristics of the Multiple Quadrature Amplitude Modulation(MQAM) signals.
98) This thesis describe three novel dual resonance multi-band injection locked frequency dividers and a new quadrature voltage controlled oscillator.
99) The fading statistics is achieved by in-phase and quadrature modulation at the radio signal by two independent Gaussian noise signals.
100) From this point, M-ary Quadrature Amplitude Modulation (MQAM), MultiCarrier Modulation (MCM) and adaptive modulation techniques are good candidates in next generation mobile radio system.
101) Quadrature demodulation can distinguish negative frequency so it can overcome position uncertainties on imaging data space.
102) Based on the plane elasticity, a hybrid, state-space-based, differential quadrature method is presented for static analysis of cross-ply laminated beams.
103) Firstly, a diode-ring coupling technique has been used to design a quadrature voltage-controlled oscillator (QVCO), which consists of two n-core VCOs.
104) Quadrature Amplitude Shift Keying?
105) Today, the planet Jupiter is at eastern quadrature – or 90 degrees east of the sun.
106) The second oscillator is a transformer coupling quadrature VCO with current reused technology.
107) If the coefficients 1, then we call a positive quadrature formula.
108) The performance analysis of quadrature correlation detection algorithm for DS-SS signal is presented.
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