The method can be used to estimate DS-SS parameters in non-cooperative communications.
该方法可用于非合作通信中直扩信号的参数估计。
The performance analysis of quadrature correlation detection algorithm for DS-SS signal is presented.
本文给出了直接序列扩频信号正交分路周期相关检测算法的性能分析。
This paper proposes a method for narrowband interference suppression in Direct Sequence Spread System (DS-SS).
该文提出一种基于门限估计的直接序列扩频(DS - SS)通信系统窄带干扰变换域抑制方法。
Combined with conventional parameter estimation methods, the carrier frequency and chip rate of the DS-SS signal can be estimated.
结合参数估计方法，可进行DS - SS信号载频和码速率估计。
How to acquire the pseudo-random code type of DS-SS signals is an important problem in obtaining the information from the DS-SS signals.
如何准确获得直扩信号中的伪码码型是解决直扩信号侦收的关键。
FSK-SS communication system has higher transmission efficiency as compared with direct series spread spectrum (DS-SS) communication system.
与通常的直接序列扩颗通信方式(DS - SS)相比，移频键控多值传送扩颗通信方式(FSK - SS)具有传输效率高的特点。
For the problem of carrier recovery in DS-SS communication, the model of dual PLL is presented, which is designed based on the auto -adapted algorithm.
针对直接序列扩频通信中的载波恢复问题，提出了一种基于自适应算法设计的双pll载波跟踪方法。
In this dissertation, the author mostly research on Direct Sequence Spread Spectrum (DS-SS), the most ordinary one within Spread Spectrum technologies.
扩频通信技术中，最常见的是直接序列扩频通信(DS - SS)系统，本论文所研究的就是这一类通信系统。
Then we detect and estimate the carrier frequency of negative SNR DS-SS Signal have done. Theoretic analysis and simulation prove the validity of the arithmetic.
理论分析和仿真实验证明，在负信噪比条件下该方法可有效提高对DS-SS信号载波的检测能力。
The knowledge studies which according to oneself and unifies own ability, designed under one kind of extremely low signal-to-noise ratio condition short wave DS-SS communications system.
根据自己所学的知识并结合自己的能力，设计出了一种极低信噪比条件下的短波ds—ss通信系统。
By exploring the phase information among symbols of the Direct Sequence Spread Spectrum (DS-SS) signal, a novel de-noising approach, used in low signal noise ratio environment, is presented.
利用DS - SS信号符号间相位信息，提出了一种可工作于低信噪比下的直接序列扩谱(DS - SS)信号噪声抑制方法。
In this paper, a blind despreading algorithm is proposed for the synchronous multi-user long-code Direct Sequence spread Spectrum (DS-SS) signals in low signal to Noise Ratio (SNR) scenarios.
针对同步多用户长码直扩信号，该文提出了一种低信噪比条件下的盲解扩算法。
In order to supply the actual BPSK DS-SS signal to verify the algorithms, this dissertation present a design method of spread spectrum signal generator with adjustable muti-parameter in detail.
为了给验证算法提供现实的BPSK调制的直接序列扩频信号，本文详细介绍了一种多参数可调的扩频信号源的设计方案。
One detection design block diagram and algorithms for low S/N DS/SS signal are presented in this paper.
本文对低信噪比直接序列扩频（DS／SS）信号的检测提出了设计方案和算法。
Conclusion in comparison with ds probes, the application of ss probes can increase the hybridization sensitivity and specificity of RDPCR.
结论与双链探针比较，单链探针的应用可以明显提高RDPCR技术杂交的敏感性及特异性。
The anti jamming capability of DS/SS communications systems can be enhanced significantly by interference suppression techniques.
干扰抑制是提高直接序列（DS）扩频通信系统抗干扰能力的重要手段。
Direct sequence spread spectrum (DS SS) technique has been widely used in military communications systems.
在军事通信中，直扩技术由于其诸多优点而获得了广泛的应用。
The process-gains of the general receivers of DS/SS can't satisfy a low bit-error-rate if the signal-noise-ratio of input signal is very low.
在输入信噪比极低的直序扩频系统中，常规的接收机获得的处理增益难以满足系统低误码率的要求。
The process-gains of the general receivers of DS/SS can't satisfy a low bit-error-rate if the signal-noise-ratio of input signal is very low.
在输入信噪比极低的直序扩频系统中，常规的接收机获得的处理增益难以满足系统低误码率的要求。
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