There are two main alternatives, Direct Sequence Spread Spectrum(DSSS) and Frequency Hopping Spread Spectrum. 重要有两种选择,直接序列扩频(DSSS)和跳频扩频。
The principle of direct sequence spread spectrum ranging is introduced and the echo model of near field ranging is discussed. 论述了直接序列扩频(DSSS)测距的原理,研究了近距离测距的回波模型。
The difference between UWB and the traditional direct sequence spread spectrum technology was analyzed, and the simulation models of TH-IR and DS-IR systems were installed. 首先分析了超宽带技术与传统的直接序列扩频(DSSS)技术的区别,然后建立了TH-IR和DS-IR超宽带系统的仿真模型,得到两种IR系统在多种干扰条件下的误码率性能。
Under strong interference environment for the burst-mode direct sequence spread spectrum system, the basic principles of spread spectrum Communication are performance parameters were introduced. 针对强干扰环境下的短时突发扩频发射系统,介绍了扩频通信的基本原理和性能参数,并以处理增益为指标分析了突发直扩系统的抗干扰能力。
Deriving from direct sequence spread spectrum, efficient spread spectrum can solve the inconsistency in transmission bandwidth and process gain, and improve the anti-jamming ability of the system. 高效扩频技术是直接序列扩频(DSSS)衍生而来的,能有效解决传输带宽与处理增益之间的矛盾,提高系统的抗干扰能力,受到了越来越多的重视。