A System Response Cancellation Method Based on Time Domain
For noise measurement systems,the accuracy of measurement is one of its most important performance indicators.Influenced by the response of the system,the broadband transmit/receive signal is often distorted,which will affect the measure-ment accuracy of the system.Therefore,it is important to investigate the system response cancellation method.At present,there are few applications of system response cancellation,the commonly used method is realized by inverse weighting the system response in the frequency domain,with problems such as high computational complexity,low accuracy,and discontinuity of the generated sig-nal.To overcome the above problems,this paper proposes a novel method of time domain system response cancellation which is based on FIR filter.Simulations demonstrate that the proposed method has higher computing efficiency as well as higher accuracy than the previous method and can generate a continuous system response cancellation signal.