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。
Secondly, the performance of DSSS system under multipath channels and its influential parameters are systematically analyzed. This study is conducted in two aspects.
其次，本文系统地分析了直扩系统在多径信道下的性能和影响因素。
Acquisition technology is one of the key technologies of CH-DSSS system, so we need to study reasonable and feasible acquisition methods of CH-DSSS communication system.
捕获技术是跳码扩频通信系统的关键技术之一，所以我们有必要研究跳码扩频通信系统合理、可行的捕获方法。
It mainly contains the digital modulate system, the SS communication theory and the direct sequence spread spectrum (DSSS) system.
主要是数字调制系统、扩展频谱通信原理和直接序列扩频系统等内容。
A new combined Surface Acoustic Wave (SAW) convolver, or a serial searching code acquisition scheme for direct sequence spreading spectrum (DSSS) communication system is presented.
提出了一种用于直接扩频通信系统（DSSS）快速捕获，新型组合声表子波（SAW）卷积器序列搜索码捕获方案。
The results suggest that the BER performance of DSSS communication system has close relationship with the chip wave-shaping and is consistent with MRCE (Maximal Ratio Combining Efficiency).
分析计算结果表明，直扩系统的误码性能与码片波形的选择密切相关，并且与扩频码片的最大比合并有效性是相一致的。
Secondly, the system physical layer's key technology—Direct Sequence Spread Spectrum (DSSS) is described.
在详细说明了扩频通信的理论基础之后，对直接序列扩频技术及系统作了介绍。
Therefore studying the Narrowband interference suppression technology in DSSS communication system to improve the communication capacity of the system has important practical significance.
因此研究直扩通信系统窄带干扰抑制技术以提高系统的通信能力具有重要的现实意义。
In a lot of antijamming techniques for direct spread spectrum system (DSSS), the DSSS signal is approximately considered as a stationary process.
众多的扩频通信抗干扰技术往往把有用扩频信号近似看作平稳随机过程。
The design of the PN code acquisition of the Direct Sequence Spread Spectrum(DSSS) system for a Unmanned Aerial Vehicle(UAV) TT&C System is described in this paper.
讨论一种用于某无人机直序扩频通信测控系统的PN码捕获方案。
The design of the PN code acquisition of the Direct Sequence Spread Spectrum(DSSS) system for a Unmanned Aerial Vehicle(UAV) TT&C System is described in this paper.
讨论一种用于某无人机直序扩频通信测控系统的PN码捕获方案。
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