Distortion compensation in log-domain filters using state-space techniques

Douglas Frey

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Distortion compensation in log-domain filters using state-space techniques

机译：使用状态空间技术的对数域滤波器中的失真补偿

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A new state-space method is proposed for the synthesis of "quasilog-domain" filters where the parasitic emitter resistance of transistors is built into the equation formulation. The explicit exponential maps for log-domain filters are replacedwith implicit exponential maps yielding nodal equations for active filters. The theory, which unifies a class of externally linear filters including log-domain filters as a subset, is shown to be applicable to general higher order filters. Circuitrealization is discussed, some example circuit topologies are proposed, and simulation results are offered to show the potential of the approach in improving log-domain filter performance.

机译：提出了一种新的状态空间方法，用于合成“准同畴”滤波器，其中晶体管的寄生发射极电阻被内置到方程公式中。对数域滤波器的显式指数映射被隐式指数映射所取代，从而生成活动滤波器的节点方程。该理论将一类外部线性滤波器（包括对数域滤波器）统一为子集，被证明适用于一般的高阶滤波器。讨论了电路实现，提出了一些示例电路拓扑结构，并给出了仿真结果，以展示该方法在提高对数域滤波器性能方面的潜力。

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来源
《IEEE Transactions on Automatic Control》 |1999年第7期|860-869|共10页
作者
Douglas Frey;
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原文格式 PDF
正文语种英语
中图分类自动化系统;
关键词
Analog filters; Log-domain filters; Nonlinear filters; Translinear filters;

机译：模拟滤波器;日志域过滤器;非线性滤波器;跨线性滤波器;

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Distortion compensation in log-domain filters using state-space techniques

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