The invention relates to a method for detecting idle frequency spectrums by using cyclic spectrum statistic value.
本发明涉及一种利用循环谱统计量进行空闲频谱检测的方法。
SSCA (Strip Spectral Correlation Algorithm) is widely used as a time-smoothed method for estimating cyclic spectrum.
分段谱相关算法(SSCA)是循环谱估计常用的一种时域平滑算法。
The study of this paper effectively improves the performance of the cyclic spectrum correlation technology and puts forward a novel method detecting DS signal.
本课题的研究，验证了循环谱相关技术的有效性，从而为直扩信号的检测提供了新的方法。
In the light of these characteristics, the paper deduces the cyclic spectrum of UQPSK, and puts forward an algorithm for carrier-frequency capture based on cyclostationarity.
针对这一特性，文中给出了UQPS K信号的循环谱，提出了基于循环平稳特性的载频获取算法。
Based on the analytic method of cyclic spectrum density, the paper pointed out that the impact frequency could be extracted effectively with the help of scanning cyclic frequency domain.
通过对循环谱密度分析方法的特性分析，指出应用循环谱密度分析方法可以在循环频率域有效提取出滚动轴承的冲击故障频率。
Experimental results show that the method based on cyclic spectrum is more effective to describe characterization of radar emitters, it can effectively achieve individual identification.
实验结果表明，基于循环谱的辐射源个体特征更能有效的表征雷达辐射源的个体差异，可有效实现个体识别。
In order to solve the problem of direct sequence spread spectrum signals 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。
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。
The acoustic emission regularity and spectrum characteristics of rock under cyclic loading and multi-stage loading during complete failure process were studied.
对循环加载和分级加载条件下岩石损伤破坏全过程的声发射规律和频谱特性进行了研究。
The detection and parameter estimation of DS signal are studied in this paper. Cyclic period chart spectrum estimation is used on parameter estimation.
本文研究了直扩信号的检测和参数估计两方面内容，参数估计使用了循环周期图谱估计方法。
In order to solve the problem of reducing spectrum leakage, a new algorithm based on equal angle-interval sampling principle is proposed according to the cyclic shift character of base phasor.
就减少频谱泄漏问题，根据基相量循环移位性质提出了一种新的等角度间隔采样算法，并证明了该算法的递推特性。
Its UV-Vis absorption spectrum, fluorescence spectrum and cyclic voltammetry were studied for photoelectric properties.
采用紫外-可见吸收光谱、荧光光谱和循环伏安法研究了该配合物的光电性能。
Cyclic period chat spectrum estimation is used on parameters estimation such as carrier frequency, chip width and amplitude.
参数估计主要对直扩信号的载频、码片时宽和幅度进行了估计。
By using 32 bit Cyclic Code Shift Keying(CCSK) code-word S0 to establish spread spectrum space, the tamed spread spectrum was completed.
以32位的循环码移位键控（CCSK）码字S0为基础建立扩频空间，完成软扩频；
By using 32 bit Cyclic Code Shift Keying(CCSK) code-word S0 to establish spread spectrum space, the tamed spread spectrum was completed.
以32位的循环码移位键控（CCSK）码字S0为基础建立扩频空间，完成软扩频；
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