The undesired periodic noise filtering in the frequency domain is carried out by {HEAD ~ the DSP} 22 on the complex transformation values affected by {TAIL ~ the undesired periodic noise} 
The undesired periodic noise filtering in the frequency domain is carried out by { HEAD ~ the DSP } 22 on the complex transformation values affected by { TAIL ~ the undesired periodic noise }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL