突发传输系统中扩频接收机功率级自适应同步电路

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI:10.1109/MILCOM.1982.4805958

P. W. Baier, J. Meyer, H. Waibel

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引用次数: 11

摘要

某些军事通信系统是基于正交扩频波形(BOK)组成的二进制电报的抗干扰突发传输。为了在接收端重新获得电文的内容，必须通过同步电路检测事先未知的电报到达时间。本文提出了一种新型的功率级自适应同步电路，用于产生电报报警。该电路显示了在噪声干扰情况下的cfar性能，但如果接收到其他类型的干扰信号，则不会显示其他同步系统(例如在接收器前端采用硬带通限制器的系统)的典型退化。对噪声干扰器和正弦干扰器同步电路的性能进行了理论分析。文中还对脉冲干扰的影响进行了分析。测量结果最终证实了理论结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Power-Level Adaptive Synchronization Circuit for Spread-Spectrum-BOK-Receivers in Burst Transmission Systems

Certain military communication systems are based on the jam-resistant burst transmission of binary telegrams which consist of orthogonal spread-spectrum waveforms (BOK). To regain the message content at the receiver the a priori not known arrival times of the telegrams have to be detected by means of a synchronization circuit. In this paper a novel power-level adaptive synchronization circuit for producing the telegram alarms is proposed. This circuit shows CFAR-performance in the case of noise jammers but does not show the degradation typical for other synchronization systems (e.g. systems employing a hard bandpass limiter at the receiver front end) if other types of jamming signals are received. The performance of the synchronization circuit is theoretically analyzed for noise jam mers and CW-sine jammers. Some considerations concerning the influence of pulsed jammers are also included. Measurements finally confirm the theoretical results.

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MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications

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