Title :
Underwater Acoustic Frequency Demodulation System Based on High-Q Filter
Author :
Cheng, En ; Zheng, Kanghuang ; Ou, Xiaoli ; Sun, Bo
Author_Institution :
Key Lab. of Underwater Acousti. Commun. & Marine Inf. Technol., Xiamen Univ.
Abstract :
Since underwater acoustic frequency-hopping (FH) communication system requires high resolution of frequency, an implementation method based on high-Q filter is proposed in this paper. Firstly, frequency demodulation system is briefly introduced. According to the given performance requirements of the filter, different implementation methods of the filter are compared. The equiripple approximation method with maximal error minimization principle is used to design FIR filter. Then the coefficients of FIR filter are obtained through MATLAB simulation. The digital signal processor TMS320C5416 made by TI Co. is used to implement the filter in the simulation
Keywords :
FIR filters; approximation theory; demodulation; filtering theory; frequency hop communication; frequency modulation; underwater acoustic communication; FIR filter; MATLAB simulation; TMS320C5416 digital signal processor; equiripple approximation method; frequency demodulation system; high-Q filter; maximal error minimization principle; underwater acoustic frequency-hopping communication; Cutoff frequency; Demodulation; Digital filters; Digital signal processors; Finite impulse response filter; Frequency synthesizers; IIR filters; Information filtering; Oceans; Underwater acoustics;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.161
