Multi-channel sensor networks and wireless data transmission methods are becoming widely used. This requires effective data compression encoding and the construction of the high-fidelity VLSI transceivers. In this paper, we introduce a tree structured discrete wavelet transform (DWT) for design of the real-time signal compression encoder. The impulse response of the symmetric half-band wavelet filter approaches the sinc-interpolation kernel, which has optimal compression efficiency. The compression encoder is implemented using the lifting wavelet network, which can be efficiently carried out in VLSI circuits.

wavelet transform, compression encoder, pyramid algorithms, VLSI.