EBooks

双光纤耦合器的建模仿真，对耦合器的透过率参数分析研究(Dual optical fiber coupler of modeling and simulation of coupler transmittance analysis of parameters)

说明：  为了提高认知无线电中感知用户对授权用户(主用户) 的检测概率,提出一种新的基于循环 谱统计量的主用户信号检测算法. 该算法利用循环谱离散频域平滑方法,对信号的循环谱在循环频 率处建立合理的检测统计量,然后求解得到对应不同虚警概率的判决门限,以使感知用户能检测信 噪比更低的授权用户信号.(To increase the detection probability of sensing users for licenced users (primary signals) in the cognitive radio , it put s forward a new primary users signal method based on cyclic spect rum statis2 tics. By using discrete f requency smoothing of cyclic spect rum , this algorithm establishes the reason2 able detection statistics on the cyclic f requency of signal cyclic spect rum , then solves and obtains the decision threshold correspond to different false alarm probability , as a result , making the sensing users can detect licenced users signal under lower signal in noise ratio (SNR) .)

说明：  拉普拉斯特征映射算法，运用MATLAB编写完成。(Laplace feature mapping algorithm, using MATLAB prepared.)

说明：  输入一个样值电平,对它进行13折线编码,画出编码波形.(Enter a sample value level, its 13-line code, draw the waveform coding.)

该程序实现对直方图均衡化，可以达到图象增强的效果，是图像处理的重要内容。(the program right histogram equalization, can achieve the effect of image enhancement, image processing is an important element.)

Data cursor support for multiple axes in a fugure(Data cursor support for multiple axes in a f ugure)

通过matlab仿真工具仿真分析了APSK调制方式在典型的加性高斯白噪声下的传输性能(Through simulation matlab simulation tool analyzes APSK modulation in a typical additive white Gaussian noise transmission performance)

数值模拟轨道不平顺，可以做为轮轨激励施加到轨道和轮轨上，研究轮轨的高频振动(Numerical simulation of track irregularities, can apply for wheel-rail incentive on the rail and wheel/rail, high frequency vibration of the wheel/rail)

说明：  这是书上的代码，C/C++中调用Matlab C Math Library的实现，供大家参考(This is the code book, C/C++ In Matlab C Math Library calls to achieve for your reference)

协作通信中，运用放大转发的误码率分析。运用最大比合并(Collaborative communication, the use of forward error rate analysis of amplification. The use of maximum ratio combining)