足够的输入参数。

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준영 2023年5月10日结束

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//www.tianjin-qmedu.com/matlabcentral/answers/1960644-insufficient-input-parameters

回答: Neeraj 2023年5月15日5点38

                          函数[Xm, faxis, xtw] = CalcFourierSpectrum (xt,达峰时间、fmax UseWindow)
                         
                          %−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
                         
                          dt =最高温度/(长度(xt) 1);% - - - - - < < <输入参数不足。这里的消息
                         
                          t = 0: dt:最高温度;
                         
                          %−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
                         
                          xtw = xt;
                         
                          如果(UseWindow)
                         
                          %的窗口
                         
                          弗兰克-威廉姆斯= 1 /(2 *最高温度);
                         
                          %汉明窗
                         
                          弗兰克-威廉姆斯= 1 /(达峰时间);
                         
                          w = 0.54 - -0.46 * cos(2 *π* t /最高温度);
                         
                          xtw = xt。* w;
                         
                          结束
                         
                          % continuousf频率范围
                         
                          OmegaMax = 2 *π* fmax;
                         
                          dOmega = OmegaMax * 0.001;
                         
                          %−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
                         
                          fvec = [];
                         
                          Xmvals = [];
                         
                          p = 1;
                         
                          为ω= 0:dOmega: OmegaMax
                         
                          coswave = cos(ω* t);
                         
                          sinwave = sin(ω* t);
                         
                          %执行四个ier v变换数值我n t e g r t i o n
                         
                          Xreal =总和(xtw。* coswave * dt);
                         
                          Ximag =总和(xtw。* sinwave * dt);
                         
                          杂志=√Xreal * Xreal + Ximag * Ximag);
                         
                          % s c f l e赫兹频率,幅度最大
                         
                          fHz =ω/(2 *π);
                         
                          杂志= 2 * mag /达峰时间;
                         
                          %保存f频率和大小
                         
                          faxis (p) = fHz;
                         
                          Xm (p) =杂志;
                         
                          p = p + 1;
                         
                          结束
                         
                          结束