Title :
New baseband zero-crossing demodulator for wireless communications. I. Performance under static channel
Author :
Lee, Edward K B ; Kwon, Hyuck M.
Author_Institution :
Land Mobile Products Sector Res. Lab., Motorola Inc., Fort Lauderdale, FL, USA
Abstract :
A new, recently developed baseband receiver, called “zero-intermediate frequency zero-crossing demodulator (ZIFZCD),” is presented in this paper. The ZIFZCD is applicable to both π/4-quadrature phase shift keying (π/4-QPSK) and continuous phase frequency shift keying (CPFSK) signals. This ZIFZCD is mostly implemented in digital hardware that offers low power consumption, small size, and ease of manufacturing, compared to conventional analog hardware and digital signal processor implementations. The digital implementation of the ZIFZCD is found to be much simpler than that of the conventional zero-intermediate frequency cross-differentiate-multiply (ZIFCDM) demodulator. Also presented are the performance analysis and simulation results for the proposed ZIFZCD under static environments
Keywords :
Gaussian channels; demodulators; digital communication; frequency shift keying; quadrature phase shift keying; π/4-quadrature phase shift keying; AWGN channels; CPFSK; QPSK; ZIFZCD; baseband receiver; baseband zero-crossing demodulator; continuous phase frequency shift keying; digital hardware; low power consumption; performance; simulation; static channel; static environments; wireless communications; Baseband; Demodulation; Digital signal processors; Energy consumption; Frequency shift keying; Hardware; Manufacturing processes; Performance analysis; Phase shift keying; Wireless communication;
Conference_Titel :
Military Communications Conference, 1995. MILCOM '95, Conference Record, IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-2489-7
DOI :
10.1109/MILCOM.1995.483525
