In this paper, a novel scheme of interference mitigation in DSSS is proposed.
本文提出了一种新的DSSS系统自适应干扰抑制方案。
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。
And in the application of all digital DSSS receiver, this DMF behaved very well.
该设计被应用于全数字直接序列扩频接收机中，并取得了满意的效果。
The method is applicable to assisted SPS receivers and high precision DSSS range acquisition.
该算法主要应用于辅助式卫星定位接收机的开发和高精度扩频测距等领域。
In fact, as the result of the period of a PN code, cyclostationarity is a key property of DSSS signal.
事实上，由于伪码的周期性而导致的循环平稳是扩频信号的一个重要特征。
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。
A better method for direct sequence spread spectrum (DSSS) receiver to decrease the acquisition time is proposed.
提出一种减小直接序列扩频(DSSS)接收机信号捕获时间的改进方法。
The technology of directs sequence spread spectrum (DSSS) have been applied in the military communication widely.
直接序列扩频技术在军事通信中得到了广泛的应用。
It was proposed that the project of satellite overlay communication with direct sequence spectrum spreading (DSSS).
提出一种利用DS扩频技术实现卫星重叠通信的方案。
An algorithm for the suppression of narrowband interference in the direct sequence spread-spectrum (DSSS) systems is presented.
提出了直接序列扩频通信系统中抑制窄带干扰的一种算法。
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。
Adaptive filtering algorithms can be used on time domain to rejection Narrow-band interference (NBI) of man-made of enemy in DSSS.
在敌方有意的窄带强干扰下，扩频通信系统可以利用时域自适应滤波算法来抑制干扰。
The mathematics model of DSSS, PN code, correlative reception of spread spectrum signal, synchronization and tracking are studied.
研究了直扩系统的数学模型，扩频用的伪随机码，扩频信号的相关接收，扩频系统的同步和跟踪等。
Direct sequence spread spectrum (DSSS) and despreading first structure is most advantageous of all kinds of spread spectrum techniques.
扩频系统中性能最好的是直接序列扩频的先解扩后解调方式。
The problem of PN code acquisition is the key technique in DSSS receiver when there are narrowband interferences in the received signal.
本文针对新型的卫星用接收机伪码捕获的性能指标要求 ，设计了一种基于中频直接采样数字化的伪码捕获算法。
One is the detection of low SNR DSSS signal and extraction of length of PN code, the other is detection of BPSK signal from multi signals.
对直扩信号侦测的计算机模拟结果表明，该方法不仅能检测到低信噪比的此类信号，而且能提取到扩频码周期等参数。
Called complementary code keying (CCK) the technique works only in conjunction with the DSSS technology specified in the original standard.
此项技术叫做互补码键控（CCK），他只与原标准中规定的直接顺序扩频（DSSS）技术一起工作。
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。
A direct sequence spread spectrum (DSSS) receiver has strict requirement on local carrier's synchronization, and always needs complex circuits.
直接序列扩频接收机对本地载波的同步要求非常严格，以往所需电路复杂。
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 performance of Direct Sequence Spread Spectrum(DSSS) in severe pulsed noise interference will be badly degraded when the duty factor is small.
当脉冲干扰占空比较小时，干扰能量集中，导致直接序列扩频（DSSS）系统的误码性能较差。
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。
According to the signal synchronization of LEO's direct sequence spread spectrum (DSSS) communication, a method based on software radio platform was described.
本文针对低轨卫星直接序列扩展频谱(DSSS)通信中的信号同步问题，提出了基于软件无线电平台的处理方法。
It would also need good shielding and special electronics to filter the DSSS signal from the radio-noise created by the Earth, the sun and the rest of the galaxy.
同时还需要良好的外层保护和特殊电子器件，从地球、太阳及其太空中传来的无线电“杂音”中过滤出dsss信号。
What CCK does is to apply sophisticated mathematical formulas to the DSSS codes, permitting the codes to represent a greater volume of information per clock cycle.
CCK所做的工作是把复杂的数学公式应用于DSSS代码，以允许该代码在每个时钟周期表示更多的信息。
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。
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。
As a result, the computer simulations show that the LPI capability of the new DSSS modulation become more effective within the same bandwidth and Spread Spectrum gain.
计算机仿真结果表明，在调制带宽或扩频增益不变的前提下，提高了DSSS调制信号的低概率截获性能。
The paper introduces the principle and the merit of DSSS communication, then analyze the anti-jamming capability of DSSS communication in the case of many kinds of jam.
文章介绍了直接序列扩频通信的原理及其优点，针对不同的干扰方式，对直接序列扩频通信的抗干扰能力进行分析。
The paper introduces the principle and the merit of DSSS communication, then analyze the anti-jamming capability of DSSS communication in the case of many kinds of jam.
文章介绍了直接序列扩频通信的原理及其优点，针对不同的干扰方式，对直接序列扩频通信的抗干扰能力进行分析。
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