Carrier phase recovery performance for PN-spread TDRSS link with radio-frequency interferenceThe carrier-phase recovery performance of a Costas loop for a nonlinear satellite channel with uplink and downlink noise is analyzed, and the extension of these results to the case where uplink radio-frequency interference (RFI) is present is considered. The signal format here is binary phase-shift-keyed (BPSK) or unbalanced quaternary phase-shift-keyed (UQPSK), the signals being either the non-return-to-zero (NRZ) or biphase (Manchester) type. With UQPSK, at least one data stream must be PN-spread. The channel comprises additive white Gaussian noise (WGN), a wideband filter, a bandpass nonlinearity and more additive WGN. The RFI being considered is pulsed continuous-wave, pulsed WGN, or a combination of the two. It is noted that the Tracking and Data Relay Satellite System (TDRSS) will be subjected to RFI from certain locations, especially in the S-band of frequencies. The characteristics of this link are generalized to form the assumptions underlying this analysis. The analytical results given include the S-curve of the equivalent loop and the phase-error variance of the linearized loop.
Document ID
19810037464
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mckenzie, T. M. (LinCom Corp. Pasadena, CA, United States)
Braun, W. R. (LinCom Corp. Pasadena, Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1979
Subject Category
Communications And Radar
Meeting Information
Meeting: NTC ''79; National Telecommunications Conference