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Weak signal detection
针对强噪声背景中弱信号检测问题,在传统检测方法基础上,提出了基于联合去噪和频率调制的微弱信号检测方法。搭建自相关和小波阈值变换联合去噪系统,极大程度抑制了噪声对检测结果的不利影响。利用频率可调标准信号调制待测信号频率,使得被测信号与检测系统策动力信号的频率差满足检测条件,打破了利用Duffing 振子检测系统只能检测与系统策动力频率相近信号的限制。(In order to solve the problem of weak signal detection in strong noise background, based on traditional detection methods, puts forward the method of weak signal detection and denoising based on frequency modulation. The self correlation and wavelet threshold transform combined de-noising system can greatly restrain the adverse effect of noise on the detection results. Use adjustable standard signal modulation signal frequency to be measured frequency, the signal detection system and the driving signal frequency difference meet the test conditions, the system can only break detection signal detection and system driving the similar frequency limit by using Duffing oscillator.)
- 2017-12-11 22:09:40下载
- 积分:1
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chaotic_simulation
matlab程序,对一个混沌系统进行仿真。
lyapunov.m是计算的主程序;qi_hyper.m是一个例子(qi系统),利用qi_hyper_lyap.m计算所有李氏指数,利用qi_hyper_lyapDim.m计算分形维数。其他系统稍作改正就可使用。经验证程序比其他计算李氏指数的更为有效精确。(matlab program for a simulation of chaotic systems. lyapunov.m are calculated in the main program qi_hyper.m are a case in point (qi system), the use of all qi_hyper_lyap.m calculated Lyapunov exponent, using qi_hyper_lyapDim.m calculated the fractal dimension. Other systems can be used to make some corrections. Experience in the certification process than any other computing Lyapunov exponent of the more effective precision.)
- 2009-03-26 20:31:12下载
- 积分:1
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LMSsin
原始信号、噪音均为正弦信号的LMS噪音抵消系统实现(The original signal and noise are sinusoidal signals in noise canceling system to achieve LMS)
- 2009-12-05 15:30:25下载
- 积分:1
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Matlab
说明: 汽车理论 包括制动性 动力性 燃油经济型计算(Automobile theory, including dynamic braking fuel economy calculation)
- 2011-03-08 18:14:48下载
- 积分:1
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dc_series_motor
motor dc control whith matlab
- 2013-07-31 21:53:56下载
- 积分:1
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mda
in this program, I have reduced dimension of iris data with MDA
- 2012-05-27 17:50:28下载
- 积分:1
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MYGA
双层规划的MATLAB代码,求解双层规划可以尝试采用(bi level programming)
- 2014-10-07 20:35:28下载
- 积分:1
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generateVoigtN
由给定高斯线型半高全宽,与洛伦兹线型半高全宽,计算对应的归一化的Voigt线型。(use the FWHM of Gaussin profile and Lorentz profile to caculate the voigt profile which is normalized by energy.)
- 2016-01-11 18:05:33下载
- 积分:1
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guiyihua
说明: 归一化随机共振代码,亲测有用,需要的自己拿(Normalized Stochastic Resonance Code)
- 2021-05-13 08:30:02下载
- 积分:1
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matlab
this provides the Discrete Fourier Transform function that can be used im more applications
- 2013-08-26 15:07:29下载
- 积分:1