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| Title | Design and implementation of a code-phase-shift keying spread spectrum receiver employing a FPGA baseband decoder |
| Publication Type | Conference Paper |
| Year of Publication | 1997 |
| Authors | Chan, S. K. S., and V. C. M. Leung |
| Conference Name | Communications, Computers and Signal Processing, 1997. '10 Years PACRim 1987-1997 - Networking the Pacific Rim'. 1997 IEEE Pacific Rim Conference on |
| Pagination | 632 -635 vol.2 |
| Date Published | aug. |
| Keywords | carrier-phase synchronization, code-phase-shift keying spread spectrum receiver, Costas loop, CPSK baseband decoder, CPSK decoder, CPSK signaling scheme, data acquisition, decoding, demodulators, digital radio, discrete components, double threshold detection scheme, field programmable gate arrays, FPGA baseband decoder, FPGA chip, IF demodulator, M-ary direct sequence spread spectrum receiver, modified double-dwell serial search scheme, modulation coding, phase shift, phase shift keying, pseudonoise codes, pseudonoise sequence, radio receivers, receiver performance, search problems, signaling waveforms, spread spectrum communication, synchronisation, telecommunication signalling, tracking |
| Abstract | In this paper, we present the design of an M-ary direct sequence spread spectrum receiver employing a novel code-phase-shift keying (CPSK) signaling scheme, with each of the M signaling waveforms derived from a different phase shift of a single pseudonoise sequence. The receiver consists of an IF demodulator and a CPSK baseband decoder, implemented using discrete components and a FPGA chip, respectively. A modified double-dwell serial search scheme is used for data acquisition and tracking, and the carrier-phase synchronization is solved by a Costas loop in the IF demodulator and a double threshold detection scheme in the CPSK decoder. Measurements of receiver performance are presented and compared with theoretical calculations |
| URL | http://dx.doi.org/10.1109/PACRIM.1997.620342 |
| DOI | 10.1109/PACRIM.1997.620342 |