Title :
A direct conversion receiver for GMSK in digital mobile communications
Author :
Wu, Bo ; Wang, Jing ; Yao, Yan
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Quadrature detection is applied to the direct conversion receiver for a Gaussian minimum shift keying (GMSK) signal which is implemented by one DSP chip, TMS320C25, and some supporting components at the bit rate of 72 kb/s. The frequency error estimation, timing recovery, and decision are all completed by software, which makes the receiver simple and flexible. Computer simulation results and test performance of the actual system are satisfactory. The system is easy to modify for different requirements and is suitable for discrete realization and integration
Keywords :
Gaussian processes; digital radio; digital signal processing chips; land mobile radio; minimum shift keying; radio receivers; signal detection; telecommunication computing; 72 kbit/s; DSP chip; Gaussian minimum shift keying; TMS320C25; decision; digital mobile communications; direct conversion receiver; frequency error estimation; quadrature detection; software; test performance; timing recovery; Bit error rate; Computer simulation; Digital signal processing chips; Frequency estimation; Frequency shift keying; Local oscillators; Mobile communication; Signal processing; Signal processing algorithms; Timing;
Conference_Titel :
Vehicular Technology Conference, 1993., 43rd IEEE
Conference_Location :
Secaucus, NJ
Print_ISBN :
0-7803-1267-8
DOI :
10.1109/VETEC.1993.507497
