Bit error probability degradation due to wideband RFI in receiver with 1-bit analog-to-digital converter at front end

Many modern receivers employ an intermediate frequency (IF) sampling and a 1-b analog-to-digital (A/D) converter at the receiver front end. After the 1-b A/D converter, synchronizations and bit detection are implemented digitally with the use of an application-specific integrated circuit. The author assumes that perfect PN code, carrier, and bit synchronizations are acquired before an in-band PN spread radio frequency interference (RFI) hits the link. He then considers the RFI effects on the bit error probability of the receiver with the IF sampling and the 1-b A/D converter at the front end