An adaptive threshold control algorithm based on correlation detection 一種基于相關檢測的自適應門限控制算法
Correlation detection scheme 相關檢測線路
4 . a signal detection system based on the correlation detection technique is designed . and the configuration of the detection circuit is illustrated in detail 4 .介紹了相關檢測技術的原理和優(yōu)點,設計了基于相關檢測技術的信號檢測系統,并且詳細介紹了信號檢測電路的實現方法。
Firstly , the paper introduces the character and the development of all - digital receiver , then an adaptive threshold correlation detection algorithm has been presented 本文首先介紹了全數字接收機的特點及其發(fā)展概況,然后介紹了一種用于信號捕獲的自適應門限的信號相關檢測算法。
Based on the theoty of statistical dctection and research on distribution of dct coefficiefits , the chapter 3 proposes a robust 3d motion blind watermark detection algorithin , which is a sign correlation detection scheme 第三章基于統計檢測理論與dct變換系數分布的研究,提出一個魯棒的三維運動盲水印檢測算法,它是一個dct變換域上的符號相關性檢測算法。
In this paper , the detection and parameter estimation , are studied for ds - ss / bpsk signal with low signal - to - noise ratio , including square detection , cyclic spectrum detection , correlation detection and higher - order statistics - based detection 本文研究了包括平方倍頻檢測、周期譜檢測、時域相關檢測和高階統計量檢測四種針對低信噪比下ds - ss / bpsk信號的檢測與參數估計方法。
Several methods of sequence spread spectrum signals direction have been developed , such as energy detection , correlation detection , cepstrum detection , cyclic spectral , higher order cumulant detection , etc . these methods developed from the research of detection and estimation for ds signals 直擴通信信號檢測的研究已發(fā)展出許多方法,如能量法、相關法、倒譜法、周期譜法及高階譜法等。
By making use of the characteristics of pseudorandom spread spectrum sequence in time - domain , this thesis has studied the time - domain correlation detection method of the dsss / bpsk signal and proposed the time - domain difference - accumulation detection method of the dsss / bpsk signal 利用擴頻偽隨機序列在時域上的特點,本文研究了dsss / bpsk信號的時域相關檢測方法,并提出了dsss / bpsk信號的時域累差檢測方法。
At first , to estimating common parameters , in this dissertation three detection methods - square detection , spectrum correlation detection and cepstrum detection are applied to detect the ds / cdma signal . these three methods have different advantages and disadvantages respectively 為解決ds / cdma信號共性參數的估計,本文首先將三種檢測方法:平方律法、周期譜法和倒譜法,應用到ds / cdma信號的檢測與參數估計中。
On this basis , the wavelet decomposition established on the time - domain correlation detection method provides a feasible scheme that improves performance , in a situation when it is impossible to design the pre - filter because the frequency band of the useful signal is unknown 本文在此基礎上加以擴展,分析了dsss / bpsk信號的高階統計量,并以此為基礎進行檢測。 4 .倒譜分析和周期譜分析近年來被廣泛應用于對dsss / bpsk信號的研究。