This paper introduces an application of adaptive filtering in a noise-canceling configuration that detects code delay and multipath in GPS using a simplified GPS signal model. An adaptive filtering process which allows a receiver to accommodate for changes in the environment surrounding the antenna is used. In this algorithm, filter weights from an LMS adaptive noise-canceling algorithm enable ...

* This paper is supported by National Science Foundation of China (69872014) ABSTRACT The performance of widely-used adaptive noise canceling(ANC) deteriorates much when the desired signal is leaked into the reference channel or when there are uncorrelated noises present in the reference channel. This paper proposes a dual-microphone scheme, named Iterative Noise Canceling (INC), to overcome th...

This paper presents a hybrid active noise canceling (HANC) algorithm to overcome the acoustic feedback present in most ANC system, together with an efficient secondary path estimation scheme. The HANC system provides a solution of two fundamental problems present in these kind of ANC systems: The first consists in a reduction of the acoustic feedback from the cancellation loudspeaker to the inp...

The objective of this paper is to provide improved real-time noise canceling performance by using kepstrum analysis. The method is applied to typically existing two-microphone approaches using modified adaptive noise canceling and speech beamforming methods. It will be shown that the kepstrum approach gives an improved effect for optimally enhancing a speech signal in the primary input when it ...

in this paper, we propose a technique of artificial intelligence called adaptive neuro fuzzy inference system (anfis) for canceling maternal electrocardiogram (mecg) in fetal electrocardiogram extraction (fecg).this technique is used to estimate the mecg present in the abdominal signal of a pregnant woman. the fecg is then extracted by subtracting the estimated mecg from the abdominal signal. p...

We propose a new method of canceling the fixed-pattern noise of CMOS activepixel image sensors caused by the threshold mismatch of MOS FETs in pixel circuits. This method uses with non-destructive intermediate readout circuitry. Assuming a TSMC 0.25-μm mixed-signal process, we designed a CMOS image sensor in which the canceling circuit was implemented for each column of the pixel-sensor array. ...

For capacitive-isolated gate drivers, the pulse width distortion (PWD) and common mode transient immunity (CMTI) are vital factors to evaluate its performance. In this paper, an envelope detection circuit a dV/dt noise canceling of drivers is designed based on X-FAB 0.35µm CMOS process. With these structures, driver alleviates PWD improve CMTI. Spectre simulation results show that achieves 200k...