频率跳信号的检测

MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's Pub Date : 1986-10-01 DOI:10.1109/MILCOM.1986.4805684

G. Cooper

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引用次数: 9

摘要

本文研究了在窄带干扰信号存在的情况下，通过多次观测来检测跳频信号的性能和权衡。提出了一种自适应算法，用于利用在多个时间间隔内观察到的并行滤波器组的输出来判断是否存在一个或多个跳频信号。通过计算机仿真，探讨了滤波器数量、时间间隔数量、每个能量探测器的时间带宽积和总观测时间之间的权衡。在给定的虚警概率下，检测到虚警的概率是各种干扰信号数的跳频信号功率的函数。由于没有与跳同步观察频率跳信号而导致的性能下降，以及不知道跳率的影响进行了评估。

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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Detection of Frequency-Hop Signals

This paper examines the performance and trade-offs associated with detecting frequency-hop signals by means of multiple observations in the presence of narrowband interfering signals. An adaptive algorithm is proposed for utilizing the outputs from a parallel filter bank observed over a number of time intervals to make decisions on the presence of one or more frequency-hop signals. Trade-offs among the number of filters, the number of time intervals, the time-bandwidth product of each energy detector, and the total observation time are explored by means of computer simulation. The probability of detection for a specified probability of false alarm is determined as a function of the frequency-hop signal power for various numbers of interfering signals. The degradation in performance that results from not observing the frequency-hop signal synchronously with the hops is evaluated, as is the effect of not knowing the hop rate.

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来源期刊

MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's

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