1) Although the industry is rapidly introducing advanced digital communication technologies, the telephone network continues to be dependent on analog transmission.

2) Therefore, digital communication system in all aspects gradually replace can analog communications system become the most basic way of modern communications.

3) The widely use of airless digital communication, ARM technology, automation technology and network makes the possible achievement of digital, modularize and real time program control system.

4) Using IDM, we can realize high-speed digital communication on the voice band or improve the capability of a system to suppress noise.

5) Digital mod technology in the digital communication occupies a very important position, commonly used digital modulation are: frequency shift keying (FSK) and phase-shift keying (PSK), and so on.

6) A digital communication system is introduced to replace analog system used in underground locomotive carrier communication system.

7) Convolutional code widely used in various digital communication systems, such as satellite communication systems, GSM, 3G and so on.

8) A symbol synchronization method for digital communication is proposed, and it is a indirectly inserted pilot frequency based on pulse width modulation (PWM).

9) " Digital communication by definition has higher fidelity,(http:///digital communication.html) " Mr. Neuman said.

10) As most digital communication signals are cyclostationary, FRESH filter can perform excellent of suppression interference in a communication receiver.

11) A chaotic digital communication system based on binary value of chaotic inverse map is paper.

12) However, the application of digital communication to the portable terminal of our army, is blank in communicate equipment of our army all along.

13) Dinxingtong provides valuable digital communication productions for customers and increasingly became the partner trusted by suppliers and the distributer adored by market.

14) Equalization technology is a effective method which can remove intersymbol interference ( ISI ) in digital communication.

15) The experimental receiver has been used in a microwave relay system for TV transmission and digital communication, with satisfactory performances.

16) From the point of view of relative level, this paper proposes a novel approach for the multilevel compression in walsh code-division multiplexing digital communication.

17) The delta modulation is undergoing development as same as the pulse-code modulation in digital communication systems.

18) In this paper, base-band signal is returned by 2DPSK modulation signal. The algorithms of receiving and sending carrier frequency synchronization in digital communication receiver are suggested.

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

20) Square-root raised cosine roll-off digital filter was widely applied to baseband shaping filter and match filter in modern digital communication.

21) This paper deals with a digital speech communicator of very low frequency and low bit digital communication based on software ratio, which uses the technique of QPSK and FEC coding.

22) In this paper, we present a novel application of signal separation ( BSS ) in wireless digital communication.

23) The simulation results show that the ISI can be eliminated effectively with adaptable equalizers in baseband transmission, and the digital communication system takes.

24) What this paper accomplished is the research and accomplish of the high-speedbit timing recovery in the digital communication.

25) A microprocessor-implemented voice band data modem for the general purpose is one of the developmental trends in modern digital communication.

26) It is a comprehensive technology concerned with embedded system, control, computer, digital communication and network.

27) This paper presents a design and realization of FFSK (Fast Frequency Shift Keying) modem by using STC12C5410 MCU based on CMX469A. The modem is used in a point-to-point digital communication system.

28) The Swedish government passes a new bill that allows it to spy on all digital communication.

29) As a kind of new optimized algorithm, neural network can substitute for landscape orientation filter in adaptive equalization , and it has been widely used in digital communication system.

30) However, the influences brought about by polarization-mode dispersion (PMD) to the long-range digital communication system and short-range analog system therefore can not be neglected.

31) Digital baseband signal transmission is the digital communication system, one of an important part of.

32) QAM (Quadrature Amplitude Modulation) has been widely used in various digital communication systems due to its high modulation efficiency.

33) The research harvest can be used to engineering reference and guidance of GSM-R GSM-R digital communication network IOT L interface testing.

34) The development of digital communication technology makes great demands on power supply reliability, power maintenance pattern and technical maintenance level of every communication station.

35) In a digital communication system, usually there exist carrier offset between the sender and the receiver.

36) The Frequency Shift Keying modulation is widely used in HF digital communication.

37) NRZ(Non Return to Zero) code is a kind of general base signal in optical digital communication systems.

37) Wish you will love and make progress everyday!

38) have been widely applied to many digital communication systems, especially, computer communication networks.

39) Automatic repeat request ( ARQ ) schemes have been widely applied to many digital communication systems, especially, computer communication networks ...

40) The constitution of electrical control system in thermosetting machine with all digital communication was introduced as well as its main controlling function.

41) And the information's transmission, digital communication has been an important means.

42) Tightly combined with the development of technologies of microelectronics, radio engineering and digital communication, the technology of wireless data transmission came into being.

43) For its simple coding and low rate of error identification, the Cyclic Redundancy Check(CRC) is widely used in digital communication system.

44) Equalizer is usually used for removing the intersymbol interference (ISI) in digital communication.

45) A computer simulation system on digital communication system is discussed.

46) Toward digital communication, bit error and spectrum availability ratio are two main scale targets.

47) Newly developed computer and digital communication technologies enable any one to communication freely.

48) The pulse position modulation (PPM) technique is widely used in the field of ultra-wideband wireless digital communication.

49) Fiber distributed data interface (FDDI) is one of the most mature commercialization technology of high speed digital communication. FDDI is fit trunk network because of its cheaper and cheaper cost.

50) Synchronous protocol and asynchronous protocol are in common use in digital communication.

51) Symbol timing recovery (Bit Synchronization) is the key technology in the digital communication.

52) A new algorithm is proposed for symbol rate estimation of digital communication signals.