Because the DSSS system design is very complex, we adopted top-down design method.
由于直扩系统非常复杂，所以采用了top-down设计方法。
参考来源 - 无线扩频遥测遥控系统中调制解调器的研究与设计·2,447,543篇论文数据，部分数据来源于NoteExpress
The DSSS system has inherent capability to counteract narrow-band interference.
扩频方式具有很强的对抗窄带噪声的能力。
DSSS system combats the jamming by reducing the effective power of jamming, and FH system does through the frequency hopping to avoid jamming.
直接序列扩频通过扩展干扰频谱降低有效干扰功率进行抗干扰，跳频则主要是通过频点跳变的方式躲避干扰。
For DSSS system with antenna array, the spatial-temporal correlator (STC) is proposed for the acquisition of the PN code and adaptive beamforming weight.
对于使用阵列天线的直接序列扩谱系统，提出使用空时相关器方法实现码捕获和自适应波束形成权值捕获。
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