Performance optimization of the CVSD FH system based on DEP

Author

Huang, Xiaogang

Author_Institution

Zhenjiang Watercraft Coll., PLA, Zhenjiang, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

949

Lastpage

952

Abstract

To solve the problem of the low speech signal quality on the FH channels with wideband rejective interference, the performance optimization of CVSD coding in the digital FH system was studied. A new CVSD demodulation arithmetic was designed based on the principle of traditional CVSD system. Then the rule for measuring the quality of speech signal was offered and presented the simulation method of digital FH system with baseband model based on the optimized CVSD demodulation arithmetic. In the end, the influence of the received speech signal´ quality loss in the digital FH system with partial-band noise jamming based on optimized arithmetic was analyzed. The simulation results showed that compared with the traditional CVSD system, the optimized CVSD demodulation arithmetic can control availably the quality loss of the received speech signal, it can obtain better speech quality even if with the serious wideband rejective interference.

Keywords

delta modulation; demodulation; interference (signal); jamming; speech coding; CVSD FH system; CVSD coding; CVSD demodulation arithmetic; CVSD system; FH channel; baseband model; continuously variable slope delta modulation; digital FH system; optimized arithmetic; partial-band noise jamming; signal quality loss; speech signal quality; wideband rejective interference; Decoding; Jamming; Noise; Quantization; Speech; Speech coding; CVSD; Frequency Hop; Loss; Simulation; Speech;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6066434

Filename

6066434