本文提出了全响应数字光纤通信接收机最佳传递函数的逼近和实现方法;
A method is proposed for the approximation and realization of the optimal transfer function of the receivers in full-response digital fiber-optic communication systems.
本文分析了激光源FM量子噪声对数字光纤相干通信接收机性能的影响。
This paper deals with the effect of FM quantum noise of laser sources on the receiver performance in coherent fiber-optic communication systems.
无线通信接收机覆盖了无线电通信、电视广播、无线电广播、雷达定位、遥测遥控、卫星通信以及移动通信系统等各个领域。
Wireless communication receiver applies widely in so many areas such as wireless communication, television, broadcast, radar, satellite communications and so on.
单边带信号在短波频段内十分拥挤,因此要接收单边带信号就需要一个高抗干扰的通信接收机,过去由于器件的落后,直接影响先进方案的实施。
SSB signals become very crowed in short-wave frequency range, so a good anti-noise communication receivers is needed to receive SSB signals.
BAE系统公司将开发一种新型雷达预警接收机原型,该原型能实时识别无线电频率和通信活动。
BAE Systems will develop a new radar warning receiver prototype that can identify radio frequency and communications activity in real time.
在现代通信系统中,毫米波频段通常采用超外差接收机,混频器作为第一级就成为关键部件。
The super-heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system.
接收机是无线电通信系统的主要组成部分。
在无线移动通信中,接收机的本地振荡频率和载波频率之间往往存在较大的频率偏差,AFC用于克服此频偏。
In wireless communication system, there is a large frequency bias between carrier frequency and local oscillating frequency. AFC is contributed to eliminate it.
在数字通信系统中,全数字解调方法已经在高速的数字接收机中得到广泛应用。
In digital communication system, the method of all-digital demodulator has been extensive applied to high rate digital receiver.
移动通信系统中的信号传输方法,发射机,接收机和扩展码同步法。
Signal transmission method, transmitter, receiver and expanding code synchronous method in mobile communication system.
在应用于非协同通信的自适应盲接收机系统中,OQPS K信号的解调是一个难点。
In an adaptive blind receiver used in noncooperative communication, the demodulation of the OQPSK signal is a main difficulty.
例如在便携式卫星接收机和手持式个人通信设备中的应用都对滤波器的尺寸提出了严格的限制。
Such as the applications of the portable satellite receivers and the handling personal communication equipments limit strictly the size of filter.
所研制的接收机用在传输电视和数字通信的微波转发系统中,已获得良好的试验结果。
The experimental receiver has been used in a microwave relay system for TV transmission and digital communication, with satisfactory performances.
移动通信系统中的信号传输方法,发射机,接收机和扩展码同步法。
Signal transmitting method, transmitter, receiver and spread-code synchronizing method for mobile communication system.
基于混沌同步理论,设计出低噪声的混沌发射机和接收机电路,阐述了实现同步和保密通信的原理。
Based on the theory of chaotic synchronization, a chaotic transmitter and receiver circuit with low noise was proposed, and the principles of synchronization and secure communication were expounded.
系统包括GPS接收机、GPS中频数据采集器、DSP网络通信配器及计算机四部分。
The system includes four parts: GPS receiver, GPS IF data acquisition equipment, DSP network communication adapter and computer.
方法:采用ARM嵌入式系统,并与G PS模块、北斗接收机和数传电台进行串口通信,实现数据的传输。
Methods an ARM embedded system was used to achieve data transmission by implementing serial communication with GPS module, Beidou receiver and wireless digital broadcasting station.
CD MA通信系统接收机的初始同步包括PN码同步、符号同步、帧同步、和扰码同步等。
Initial synchronisms of CDMA communication system receiver include PN code sync, symbol sync, frame sync, sync of scramble code, and so on.
短波接收机的数字化是当前短波通信研究的一个重点。
The digitalization of a HF receiver is an important spot in the current communications research field.
给出了在小色散和大色散光纤通信系统中近似实现光接收机最佳传递函数的电路型式;
The circuit types approaching the realization of the optimal transfer function of the receiver in low- and high-dispersion digital fiber-optic communication systems are given.
随着现代通信技术的飞速发展和市场需求的不断提高,对射频接收机的性能提出了更高要求。
With the rapid development of the communication technique and the growing demand of the markets, the better performance of radio-frequency (RF) wireless receivers is requested.
本课题以扩频通信为理论基础,结合目前广泛使用的数字信号处理芯片DSP和FPGA,研究了区域无线电导航系统接收机数字信号处理平台。
Based on the spread spectrum communication theory, combine digital signal-processing chip DSP and FPGA, this article researches and designs the receiver system for regional radio navigation.
最后给出了跳频通信发信机、接收机以及干扰机成员的仿真模型,分析了频率偏移对多频连续波干扰性能的影响。
Finally, simulation models of FH transmitter, receiver and jammer are presented. The influence of frequency excursion on performance of multi-tone continuous wave jamming is analyzed.
这个结论对于非协作通信中接收机的设计有重要的指导意义。
It is useful for the receiver design in non-cooperative communication.
传统的通信系统中,接收机通常是在假设信道中附加噪声是高斯白噪声的情况下设计的。
In conventional communication systems, receivers are usually designed in the presence of additive Gaussian noises.
在介绍一种基于TH - PPM调制方式的超宽带通信系统的基础上,深入讨论了一种并行检测接收机方案并分析了其工作原理。
On the basis of an introduction of TH-PPM UWB communication system, this paper advances a parallel detection receiver scheme.
在通信系统中,接收机的同步要求精确地估计一些参数,比如载波频率和相位偏移。
In communication systems, the synchronization of the receiver requires to accurately estimate a number of parameters such as the carrier frequency and phase offset.
利用天线分集方案以便在系统中消除接收机接收到的信号的衰减现象的无线数字通信系统(1)是已知的。
Known are wireless digital communication systems (1) applying an antenna diversity scheme to combat fading in a received signal as received by a receiver in the system.
随着抗干扰通信体制的广泛应用,实现全概率信道化接收机是非常需要的。
With the wide application of Communication Interference Immunity, it's very necessary to realize the full-probability channelized receiver.
本文首先讨论了移动通信信道的各种参数对信道估计的影响,介绍了频率选择性信道的抽头延迟线模型和分集接收技术,在此基础上阐述了RAKE接收机的原理。
The tapped delay model of the multi-path frequency selective fading channels as well as the diversity receiver technique is introduced, and the principles of RAKE receiver are described.
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