通信中低功率谱密度识别信号的产生与检测技术研究-论文总结

摘要 本文研究了在通信中识别信号的产生及检测技术，特别是以单边带信号和直接序列扩频通信系统为例进行了深入探讨。首先介绍了单边带通信系统和直接序列扩频系统的原理，分析了它们在通信中的特点和应用。然后提出了在单边带信号中加入低功率谱密度的识别信号，并通过直接序列扩频信号进行检测的方法，实现了信号的识别和区分。在研究过程中，通过实验和模拟验证了该方法的有效性和可行性，为通信信号的识别和加密提供了新的思路和解决方案。 关键词：通信信号；单边带信号；直接序列扩频；识别信号；检测技术 Abstract This paper studies the generation and detection technology of identifying signals in communication, especially focusing on the single sideband signal and direct sequence spread spectrum communication system. Firstly, the principles of the single sideband communication system and direct sequence spread spectrum system are introduced, analyzing their characteristics and applications in communication. Then, a method of adding a low power spectrum density identification signal to the single sideband signal and detecting it through direct sequence spread spectrum signal is proposed, achieving the identification and differentiation of signals. In the research process, the effectiveness and feasibility of this method were verified through experiments and simulations, providing new ideas and solutions for signal identification and encryption in communication. Keywords: communication signal; single sideband signal; direct sequence spread spectrum; identification signal; detection technology 1. Introduction In modern society, the communication signal environment is extremely complex. On one hand, the types of noise are constantly increasing, and on the other hand, the limited spectrum resources determine that there are many signals communicating at adjacent frequency points, which may cause interference in the communication process and the received signals cannot be correctly identified as the signals sent by oneself. Therefore, is it possible to add a low power spectrum density signal in the communication signal, and detect the presence of this small signal at the receiving end to achieve the recognition of the communication signal? This paper researches how to add a low power spectrum...