摘要
介绍了一种可用于语声信号处理的高性能EllipticBireciprocal结构低通波数字滤波器实现的集成设计方法。充分利用先进半导体工艺的速度，采用硬件复用技术，整个电路的所有运算分化为单步的加减在一带超前进位链的ALU单元上分时进行，由此节省硬件耗费。该滤波器在时域及频域上的性能已在C模拟器上经过验证，能够达到纹波系数小于0．00007dB，阻带衰减大于112dB。
A high performance Elliptic Bireciprocal lowpass Wave Digital Filter(WDF) for audio signal processing is described. Based on the advanced semiconductor and hardware multiplexing technology,the operation of the circuit is divided intosteps which can be executed sequentially in a carry lookahead ALU, to save somehardwares. The filter has been verified by a C simulator in time and frequency domain,with the passband ripple of 0. 000 07 dB and stopband attenuation of 112 dB.
出处
《固体电子学研究与进展》
CAS
CSCD
北大核心
1998年第3期225-231,共7页
Research & Progress of SSE
基金
国家自然科学基金
