ask_fig

this matlab source code for detect plate number

说明：  7. 单径瑞利信道中的两发一收STBC： (1) 分析误码率的理论性能，画出比特信噪比与误码率的关系曲线。 (2) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (7 single-path Rayleigh channel of the two rounds of a close STBC: (1) the theoretical analysis of BER performance, draw the signal to noise ratio and bit error rate curve. (2) Please design a specific guide-assisted channel estimation method, the Simulink simulation, BPSK modulation measuring the bit error rate performance. Draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve.)

细化谱是信号处理领域重要的一种分析方法,这是一个matlab的细化谱程序,并且配有详细的注释(Spectrum is an important refinement of an analytical method of signal processing, which is a refinement of the spectrum matlab program, and with detailed notes)

输入信号五个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，得到识别出的信号类别，本例为2PSK, 4PSK, GMSK, OQPSK, pi/4DQSK中的一个，还可以看Art网络的扩展性。(input signal instantaneous information on five characteristics : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, the identification of signal type, The cases of two PSK, 4PSK, GMSK, OQPSK, pi/4DQSK of one, Art can be viewed network scalability.)

潮流计算程序用matlab进行开发，支持多节点的潮流计算，并可设置迭代次数与精度(Flow calculation)

说明：  这是对应matlab教程，所对应的matlab的源代码，详细介绍了matlab的大部分功能(This is the corresponding matlab tutorials matlab corresponding source code, detailed information on most of the functions matlab)

信号处理领域中时频分析工具箱，可以处理常见的食欲频域以及时频域信号分析。(Signal processing toolbox in the time-frequency analysis, loss of appetite can handle the common frequency domain and time-frequency domain signal analysis.)

功率与电压的转换..............(the transfer between power and voltage)

求原因字母a的倒谱，包括a的录音和用matlab求倒谱的程序(Reason for seeking letters a cepstrum, including a recording and using matlab program cepstrum)

the CPML ABC in the two-dimensional TEz FDTD grid.