1) spectrum of direct spread signal
直扩信号频谱
2) spread spectrum signal
扩谱信号
1.
This paper analyses the feature of radar spread spectrum signal,in view of the reconnaissance and reception of pulse compressing linear frequency modulation(LFM)signal and phase-coded signal,puts forward improving on traditional electronic reconnaissance receiver,this method is of great extension value in engineering applications.
分析了雷达扩谱信号的特征,针对脉压线性调频信号、相位编码信号的侦收问题,提出了在传统电子侦察接收机上进行改进,在工程应用方面具有很大的推广价值。
4) direct sequence spread spectrum signal
直扩信号
1.
In order to solve the problem of direct sequence spread spectrum signal s check and recognition,a blind estimate algorithm is proposed,it based on cyclic spectrum theory and matrix transform.
为了解决正确检测和识别直扩信号的问题,提出一种基于循环谱理论和矩阵变换法的盲估计算法。
5) DS-SS signal
直扩信号
1.
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。
6) DS signal
直扩信号
1.
The cyclostationary property of multipath DS signals is analyzed,the expressions of both the cyclic correlation function and cyclic spectrum are deduced,and a novel parameter estimation algorithm of DS signals is presented based on cyclic spectrum amplitude.
分析了多径直扩信号的循环平稳特性,推导了其循环相关函数和循环谱表达式。
2.
DS signal is a second order cyclostationary signal.
直扩信号是二阶循环平稳信号,根据谱相关分析方法,利用直扩信号非零循环频率处的谱线特征,可将直扩信号从噪声背景中检测出来。
3.
Based on this theory, the paper puts forward the DS signal detection method in non-cooperative communication.
基于该理论,提出了非协作通信中直扩信号检测方法,最后利用MATLAB工具对该方法进行仿真,验证了其可行性。
补充资料：贬江陵途中寄乐天、杓直、杓直以员外郎判盐
【诗文】：
想到江陵无一事，酒杯书卷缀新文。紫芽嫩茗和枝采，
朱橘香苞数瓣分。暇日上山狂逐鹿，凌晨过寺饱看云。
算缗草诏终须解，不敢将心远羡君。
【注释】：
【出处】：
全唐诗：卷412-33
想到江陵无一事，酒杯书卷缀新文。紫芽嫩茗和枝采，
朱橘香苞数瓣分。暇日上山狂逐鹿，凌晨过寺饱看云。
算缗草诏终须解，不敢将心远羡君。
【注释】：
【出处】：
全唐诗：卷412-33
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条