Title :
The realization of FH/DS/DQPSK, DS/D8PSK digital correlator sampling on intermediate frequency
Author :
Zhang, Gaoyi ; Zhang, Xun ; Zhou, Ning ; Zha, Guangming
Author_Institution :
Coll. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, we introduce one pattern of the intermediate frequency sampling digital correlator in the "multi-frequency bands, multi-patterns software radio", explain the realization technology plan of FH/DS/DQPSK, the DS/D8PSK spread spectrum signal demodulator, and then give the test results. This intermediate frequency digital correlator is realized by a high speed digital signal processing chip (DSP), FPGA and the corresponding software, which has matched some of the project\´s high speed data transmission and 256 Kbps image transmission demands.
Keywords :
correlators; demodulation; demodulators; digital signal processing chips; field programmable gate arrays; frequency hop communication; quadrature phase shift keying; signal sampling; software radio; spread spectrum communication; 256 Kbit/s; DS/D8PSK; DSP; FH/DS/DQPSK; FPGA; IF sampling digital correlator; demodulation; direct intermediate frequency sampling; direct sequence spread spectrum communication; frequency hopping system; high speed data transmission; high speed digital signal processing chip; image transmission; multifrequency band software radio; multiple-patterns software radio; spread spectrum signal demodulator; Correlators; Demodulation; Digital signal processing chips; Frequency; RF signals; Sampling methods; Signal sampling; Software radio; Spread spectrum communication; Technology planning;
Conference_Titel :
Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9015-6
DOI :
10.1109/ICCCAS.2005.1495210
