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kuopinxinhaojiance
- 利用MATLAB对扩频信号进行检测和参数估计，结果表明本方法具有在低信躁比下检测的优势-The use of MATLAB for spread spectrum signal detection and parameter estimation results show that this method is in the low than under the letter impatient edge detection
kzhouqilvbo
- 提出用照相缩微法制作一个小孔距对称双圆孔作为待测透镜傅里叶变换输入函数,利 用其傅里叶变换频谱面上的干涉条纹间距的测量值计算透镜焦距。该法装置简单,调节方便,测 量精度较高。分析了测量原理和测量误差,并给出了与理论分析相符的结果。 -Proposed method microfilm camera, a small hole as a Distance symmetric double Fourier transform lens under test input function,
cr
- 频谱感知是认知无线电的一个重要前提，而能量检测法则是比较成熟的频谱感知算法。它可以有效地凡发现频谱孔，使得认知无线电与周围通信环境相适应-Spectrum sensing cognitive radio is an important prerequisite, and the law of energy detection of the spectrum is a more mature perception algorithm. Where it can be found in the sp
fft
- 一些基本信号的FFT变换及matlab程序，包括方波，圆孔信号，以及一些信号的频谱和低通滤波程序-Some of the basic signal and the FFT transform matlab programs, including square, round hole signals, as well as some signal spectrum and low-pass filtering procedure
comm_crad_code
- Cognitive radio code - detection a hole in spectrum
convolutional-codes-calculation
- 针对基于距离谱的凿孔卷积码优化设计问题, 提出了一种高效的凿孔卷积码距离谱计算方法. 利 用卷积码状态图和凿孔码凿孔图样构造一个长度为凿孔周期的状态转移矩阵序列, 并利用状态转移矩 阵序列的乘积计算传输函数和距离谱. 为了避免符号矩阵的求逆运算, 又给出了基于状态逐步消除的传 输函数计算方法. 分析和仿真结果表明: 这种方法既有较高的计算效率, 又有很强的实用性, 可以用来 进行优化设计或者理论分析.-Hole to the distance spectrum of convol
cognitive
- cognitive radio hole spectrum detection using fixed threshold and reading from excel file
aaa
- 循环平稳特征频谱空穴检测，能很好的使用和检测。也有理论-The Cyclostationary the spectrum hole detection, the use and detection. Theory
CognitiveRadioNewFIG2
- 这是一个Matlab实现的能量检测程序，通过能量预测减少整体的错误率，从而实现对协作频谱感知的优化。它在认知无线电网络的自适应环境中表现很好，可以更好地填补频谱空洞。(This is a Matlab implementation of energy detection procedures, through the energy prediction to reduce the overall error rate, in order to achieve the optimization o