Title :
Analog CMOS high-frequency continuous wavelet transform implemented by instantaneous companding circuits
Author :
Qingxiu, Huang ; Yigang, He
Author_Institution :
Fac. of Electr. & Information Eng., Hunan Univ., Changsha, China
Abstract :
The implementation of continuous wavelet transform by using log-domain circuits is a new theory and method of instantaneous companding synthesis of wavelet functions and wavelet transform. An analogue CMOS high-frequency continuous wavelet transform circuit presented in this paper performs a time-frequency decomposition of a high-frequency input signal. The VCO in the circuit is a log-domain oscillator.
Keywords :
CMOS analogue integrated circuits; voltage-controlled oscillators; wavelet transforms; VCO; analog CMOS high-frequency; continuous wavelet transform; high-frequency input signal; instantaneous companding circuits; log-domain circuits; log-domain oscillator; time-frequency decomposition; voltage controlled oscillator; wavelet functions; Band pass filters; CMOS analog integrated circuits; CMOS process; CMOS technology; Circuit noise; Continuous wavelet transforms; Hardware; Radar applications; Signal processing; Wavelet transforms;
Conference_Titel :
Robotics, Intelligent Systems and Signal Processing, 2003. Proceedings. 2003 IEEE International Conference on
Print_ISBN :
0-7803-7925-X
DOI :
10.1109/RISSP.2003.1285566
