Analogue adaptive filters: past and present

Carusone, Anthony Chan; Johns, D.A.

doi:10.1049/ip-cds:20000052

Cited by 55 publications

(31 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The potential benefits of analog adaptive techniques compared to digital methods include higher signal processing speeds, lower power dissipations, and smaller integrated circuit areas. It should be noted that most applications of analog adaptive techniques have focused on communications and digital magnetic storage [7], and there has been little or no work on application of analog adaptive techniques to intelligent sensors which is the main focus of this paper.…”

mentioning

confidence: 99%

Application of Analog Adaptive Filters for Dynamic Sensor Compensation

Jafaripanah

Al-Hashimi

White

2005

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

Abstract-This paper investigates the application of analog adaptive techniques to the area of dynamic sensor compensation, of which there is little reported work in the literature. The case is illustrated by showing how the response of a load cell can be improved to speed up the process of measurement. The load cell is a sensor with an oscillatory response in which the measurand contributes to the response parameters. Thus, a compensation filter needs to track variation in measurand, whereas a simple fixed filter is only valid at one specific load value. To facilitate this investigation, computer models for the load cell and the adaptive compensation filter have been developed. To allow a practical implementation of the adaptive techniques, a novel piecewise linearization technique is proposed in order to vary a floating voltage-controlled resistor in a linear manner over a wide range. Simulation and practical results are presented, thus, demonstrating the effectiveness of the proposed techniques.

show abstract

mentioning

confidence: 99%

Application of Analog Adaptive Filters for Dynamic Sensor Compensation

Jafaripanah

Al-Hashimi

White

2005

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

show abstract

“…Previous research has shown that nonideal characteristics, i.e. dc-offset, is introduced into the adaptive filter by using analogue implementation of adaptation part [1]. It will lead to deterioration in the performance of analogue adaptive filters.…”

Section: Circuit Implementationmentioning

confidence: 99%

“…It will lead to deterioration in the performance of analogue adaptive filters. Recently there is indication that the digital implementation of gradient algorithm is more robust in the presence of dc-offset [1,10]. Therefore, the hardware-efficient method for digitally adapting analogue SI wave filter structure is considered here, Fig.7.…”

Section: Circuit Implementationmentioning

confidence: 99%

“…(2), each set of wave adaptor coefficients corresponds to the passive component (for example, the coefficients, j 0 γ , j=0,1,2, in wave adaptor0 corresponds to 1 L , Fig.1.). Therefore, updating the adaptor coefficients during adaptation process, the wave adaptive filter behaves like an adaptive LC filter.…”

Section: Analogue Wave Adaptive Filtersmentioning

confidence: 99%

“…Analogue adaptive filters have the potential to operate at higher speeds, consume less power and occupy smaller silicon area when compared with adaptive filters implemented using digital techniques [1]. Analogue adaptive filters have been successfully employed in various applications including digital magnetic storage, and it is likely they will continue to play an important role in future digital communication applications.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analogue adaptive filters using wave synthesis technique

Xie

Al-Hashimi

2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)

View full text Add to dashboard Cite

This paper describes new analogue adaptive filters based on wave synthesis technique. To facilitate simple adaptation process and stability checks, adaptive series and parallel wave adaptors with only one variable coefficient are developed including a suitable algorithm for updating the coefficients of the filter adaptors. A simulation example of system identification is included confirming the viability of the proposed analogue adaptive filters. An efficient hardware implementation of the analogue adaptive filters is outlined.

show abstract

Full‐DuplexRFDesigns

Zhou¹

2021

Wiley 5G Ref

View full text Add to dashboard Cite

Full‐duplex wireless involves simultaneous transmission and reception at the same frequency, promising significant enhancement in wireless network performance, such as spectral efficiency, link capacity, and network latency. For full‐duplex radios, >100 dB self‐interference suppression is needed and must be performed across the antenna, radio frequency (RF), analog, and digital domains. Self‐interference cancellation (SIC) in the RF domain, where a replica signal is tapped from the transmitter output and injected prior to receiver down‐conversion, has been used in many full‐duplex wireless systems. In this article, we describe different SIC architectures and unveil the challenges associated with full‐duplex RF SIC design. Discussion and review of some full‐duplex RF SIC designs are presented followed by a brief outlook for future works.

show abstract

Analogue adaptive filters: past and present

Cited by 55 publications

References 62 publications

Application of Analog Adaptive Filters for Dynamic Sensor Compensation

Application of Analog Adaptive Filters for Dynamic Sensor Compensation

Analogue adaptive filters using wave synthesis technique

Full‐DuplexRFDesigns

Contact Info

Product

Resources

About