peakToSecond?

[sp7412]

Is there a reference you can point me to that explains why you use the ratio of the highest peak to second highest peak as a confidence metric for acquisition?

[amk1971]

Its probably because Prof. Kai Borre done like this, and its a simple and effective metric in case of matlab. My opinion is that peak to average could be a better metric for C and Python based implementation, as it could be simpler to calculate in C or python and better represent the CN0 value.