ADC测试的疑问求助

fibonacci24

程序中计算谐波频率和能量的语句如下，能否帮忙解释下每句的意义，谢谢了
F_harmonic=[];

P_harmonic=[];

for har_number=1:10

tone=rem((har_number*(F_in-1)+1)/N,1);

if tone>0.5

tone=1-tone;

end

F_harmonic=[F_harmonic tone];

har_peak=max(spectp(round(tone*N)-spanh:round(tone*N)+spanh));

har_bin=find(spectp(round(tone*N)-spanh:round(tone*N)+spanh)==har_peak);

har_bin=har_bin+round(tone*N)-spanh-1;

P_harmonic=[P_harmonic sum(spectp(har_bin-1:har_bin+1))];

end