From 64e0193824262e93e7cd67bb8c3af68d278f990c Mon Sep 17 00:00:00 2001 From: andreas128 Date: Fri, 29 Sep 2017 16:14:32 +0200 Subject: Add RX gain description --- dpd/README.md | 1 + 1 file changed, 1 insertion(+) (limited to 'dpd') diff --git a/dpd/README.md b/dpd/README.md index 0b2e3fd..151552f 100644 --- a/dpd/README.md +++ b/dpd/README.md @@ -144,3 +144,4 @@ TODO - Find a better measurement for the quality of the predistortion. The peak-shoulder difference might be too large to be captured with the USRP, as the ADC has 12 bit and DAB signals have a large crest factor. - Implement cases for different oversampling for FFT bin choice. - Continuously observe DAB signal in frequency domain and make sure the power stays the same. At the moment only the power in the time domain is kept the same. + - At the moment we assume that the USRP RX gain has to be larger than 30dB and the received signal should have a median absolute value of 0.05 in order to have a hight quality quantization. Do measurements to support or improve this heuristic. -- cgit v1.2.3