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. The anti-interference ability of the burst-mode direct sequence spread spectrum system with processing gain was discussed. By using ADS software, a design diagram and the observed constellation and modulated spectrum were simulated. From the simulation results,the whole system is disirable.%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.通过理论分析提出了发射系统总体的设计框图,通过ADS仿真平台对该发射信号进行了仿真,搭建了直接序列扩频发射信号仿真模型.最后分析发射信号的频谱图和星座图,验证该发射方案的可行性.
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