基于ρ判决的跳频信号多跳自相关检测

Multi-hop Autocorrelation Detection of FrequencyHopping Signals Based on ρ Decision

自相关检测是用于检测跳频信号的重要方法。针对跳频信号自相关的基本特征和基于功率采样的多跳自相关检测方法的缺点,提出了基于ρ判决的跳频信号多跳自相关检测方法,该方法不但能够避免基于功率采样的多跳自相关检测方法所带来的寄生干扰,而且判决门限的确定与信噪比无关并具有良好的性能。

Autocorrelation detection is an important method for the detection of frequency- hopping signals. The paper, with an eye to the shortcoming of the multi - hop autoeorrelation detection method which is based on power sampling and the basic characteristic of the autocorrelation of the frequency- hopping signals, propose a multi- hop autoeorrelation detection method which is based on p decision. The proposed method can not only avoid the parasitical interference that is inherent in the multi - hop autocorrelation detection based on power sampling,but also has good performance and the decision threshold is irrelevant to the signal to noise ratio.