低电压对数域滤波器的低功率性能分析  

Analysis of the Low Power Efficiency for Low Voltage Log-domain Filters

作　　者：蔡理[1] 马西奎[2] 

机构地区：[1]空军工程大学工程学院,陕西西安710038 [2]西安交通大学电气学院,陕西西安710049

出　　处：《空军工程大学学报（自然科学版）》2001年第4期33-36,共4页Journal of Air Force Engineering University(Natural Science Edition)

摘　　要：对线性Gm -C积分器和对数域积分器的功率性能进行了分析 ,表明对数域滤波器更适合于在低电源电压下的低功率信号处理。计算机仿真结果显示 ,对数域积分器比线性Gm -C积分器具有更低的失真度。因此 ,对数域电路适合于低电压低功率和高频率的低失真滤波器设计。The investigation of the power efficiency of the linear G m-C integrator and the log-domain integrator is given It is shown that log-domain filters are better suited for low-power signal processing at low supply voltages The simulations show that the log-domain integrator has lower distortion than the linear G m-C integrator The log-domain circuits are appropriate for the filter designs with the low-voltage,low-power,high frequency and low distortion

关 键 词：低电压 代功率 对数域电路 对数域滤波器 信号处理 传递函数 

分 类 号：TN713[电子电信—电路与系统]