Description: 利用相关算法检测微弱信号的一个方法，适合于分析心律或者呼吸频率等生物信号-related to the use of weak signal detection algorithm in a way suited to analysis of heart rate or respiratory frequency signal biological Platform: |
Size: 327680 |
Author:王书军 |
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Description: 该软件用于研究周期信号的混沌检测，通过Duffing方程，检测极微弱信号，非常有用。-software for the study of the cycle of chaotic signal detection through Duffing equation, detect very weak signal, very useful. Platform: |
Size: 6144 |
Author:罗维 |
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Description: 利用duffing振子检测微弱信号频率的matlab程序。可以检测与周期策动力频率相差0.03之内的微弱信号频率。信噪比达到-68db-use Duffing oscillator frequency detection of weak signals in Matlab procedures. Can be detected with the cycle driven frequency difference of 0.03 within the weak signal frequency. Signal-to-noise ratio-68db Platform: |
Size: 1024 |
Author:张文 |
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Description: 关于微弱信号检测的一本好书，是从教育网上下的，相信对研究信号检测的朋友会大有裨益-On the weak signal detection of a good book is under the line from education, I believe that the study of signal detection will be of great benefit to Friend Platform: |
Size: 5713920 |
Author:惠子 |
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Description: 研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于) 振子初值敏感性检测弱信号的方法分
析后指出，过渡过程会影响检测性能，提出一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行
研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结果表明：所提出的方法有较好检测性能；混沌
临界态的 系统对噪声敏感导致相变方法难以精确确定最小检测-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, an improved method of weak signal detection ( on the simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signals (Experimental results show that: the proposed method has better detection performance chaotic critical state of the system to noise-sensitive lead to phase-change method difficult to accurately determine the minimum detectable Platform: |
Size: 273408 |
Author: |
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Description: 研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于)振子初值敏感性检测弱信号的方法分
析后指出，过渡过程会影响检测性能，提出一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行
研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, an improved method of weak signal detection ( on the simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signal (experimental colorectal Platform: |
Size: 16384 |
Author: |
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Description: 研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于)振子初值敏感性检测弱信号的方法分
析后指出，过渡过程会影响检测性能，提出一个猜数游戏，一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行
研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, make a guess the number of games, an improved weak signal detection methods (for simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signal (experimental colorectal Platform: |
Size: 5120 |
Author: |
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Description: 基于随机共振的弱信号检测，sr为龙格库塔方法解方程，rs为检测的主程序-Based on stochastic resonance in weak signal detection, sr for the Runge-Kutta method to solve the equation, rs for the detection of the main program Platform: |
Size: 1024 |
Author:fengdong |
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Description: duffing方程用于微弱信号检测的matlab程序。包含两种方法，一种是inline，一种是@fan。-duffing equation for weak signal detection matlab program. Contains two methods, one is inline, one is @ fan. Platform: |
Size: 1024 |
Author: |
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Description: Based on the Duffing equation, a Duffing oscillator algorithm (DOA) to improve the signal-to-noise ratio (SNR) was presented. By simulated
and experimental data sets, it was proven that the signal-to-noise ratio (SNR) of the weak signal could be greatly enhanced by this method. Using
signal enhancement by DOA, this method extends the SNR of low concentrations of methylbenzene from 2.662 to 29.90 and the method can be
used for quantitative analysis of methylbenzene, which are lower than detection limit of an analytical system. The Duffing oscillator algorithm
(DOA) might be a promising tool to extend instrumental linear range and to improve the accuracy of trace analysis. The research enlarged the
application scope of Duffing equation to chromatographic signal processing. Platform: |
Size: 126976 |
Author:kadir |
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Description: 针对混沌振子法检测微弱信号过程中大量的复杂运算问题, 提出了一种基于数字信号处理器( DSP) 的硬件设计方案-Weak Signal Detection bas ed on DSP and Chaos Theory Platform: |
Size: 108544 |
Author:pingping |
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Description: 本文利用软件相移技术得到相互正交的参考正弦波信号；通过互相关算法，完成了软正交矢量型LIA相关器的具体实现；利用该方法实现了对微弱信号幅值和相位的检测，有效地抑制干扰，减少了硬件电路成本。通过Matlab仿真，验证了该算法具有一定的优越性。-In this paper, the software technology is orthogonal to the phase shift of the reference sine wave signal through cross-correlation algorithm to complete the implementation of soft orthogonal vector LIA correlator achieved using this method for detecting a weak signal amplitude and phase, effectively suppress the interference and reduce the cost of the hardware circuit. By Matlab simulation show that the algorithm has certain advantages. Platform: |
Size: 176128 |
Author:君子兰 |
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Description: 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.) Platform: |
Size: 1069056 |
Author:张洋
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