Efficient frequency estimation using the pulse-pair method at different lags

Abeysekera, S.S.

doi:10.1109/iscas.2003.1205785

Cited by 13 publications

(6 citation statements)

References 8 publications

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“…From (16), the SNR gain using the Kalman filtering in obtaining the instantaneous frequency is given by 5 4 ε and the MSE after the bias compensation is given by ( ) The important parameter in IF tracking is the choice of forgetting factor λ which provides an effective window of 9 2λ . In general, a longer effective window produces a lower MSE, however it is also associated with longer transient effects.…”

Section: Bias Compensation Performancementioning

confidence: 99%

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Performance analysis of an autocorrelation based frequency tracker for LFM and QFM signals

Abeysekera

2009

2009 7th International Conference on Information, Communications and Signal Processing (ICICS)

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This paper provides a detailed analysis of a recently proposed algorithm for efficient frequency estimation and tracking. A correlation based Pulse-Pair (PP) method, which is an efficient technique for frequency estimation, is used for the frequency tracking. It is known that the PP method has a very low number of multiplications, but, has the disadvantage of requiring inverse tan operations in its implementation. Using an efficient recursive technique for implementing inverse tan operation the PP method is extended for frequency estimation and tracking of signals with time varying frequencies.

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Section: Bias Compensation Performancementioning

confidence: 99%

“…However, using the lag value of m=N/3, requires phase unwrapping for correct frequency estimation. Reference [16] has described an efficient algorithm to estimate the frequency without resorting to complicated phase unwrapping.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of an autocorrelation based frequency tracker for LFM and QFM signals

Abeysekera

2009

2009 7th International Conference on Information, Communications and Signal Processing (ICICS)

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“…To reach the CRB, it is possible to use a lag value at m=N/3 in the estimation [12]. However, using the lag value of m=N/3, requires phase unwrapping for correct frequency estimation.…”

Section: Improved Efficient Estimationmentioning

confidence: 99%

“…However, using the lag value of m=N/3, requires phase unwrapping for correct frequency estimation. Reference [12] has described an efficient algorithm to estimate the frequency without resorting to complicated phase unwrapping. The estimation is given by…”

Section: Improved Efficient Estimationmentioning

confidence: 99%

Efficient time varying frequency tracking using recursive estimation

Abeysekera

2008

APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems

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This paper presents performance results of an algorithm for efficient time varying frequency estimation and tracking. The algorithm is implemented with a small number of multiplications, which is important for most hardware implementations. A correlation based Pulse-Pair (PP) method is used for the initial frequency estimation. The PP method requires inverse tan operation that can be implemented using an efficient recursive technique. A simulation example showing proper frequency estimation and compensation for tracking of signals with time varying instantaneous frequencies is also presented in the paper.

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“…To eliminate this fixed offset, the measurement error adaptive correcting function is designed [9] . A 50 Hz signal will be produced at regular intervals by the device itself, and inject the signal into both voltage and current input channel, namely, substitute original signal with synchronous signal, and then measure the phase difference by this system when the signal through different channel [10] . Supposing the measured counting numbers is 0 n , and then the equation (2) can be optimized as follows:…”

Section: Error Caused By Communication Transmission Delaymentioning

confidence: 99%

A New On-line Measurement System of Dielectric Loss Angle for High Voltage Capacitive Apparatus

Li¹,

Chu²,

Zhang³

et al. 2007

2007 IEEE Industry Applications Annual Meeting

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A new on-line measurement system of dielectric loss angle (δ ) with FPGA for high voltage capacitive apparatus is presented in this paper. By using double polarity zero crossing point comparing method for measuring phase difference, system frequency measurement and measurement error adaptive corrected with FPGA is adopted. Tests results show that the measuring system based on FPGA is with higher precision, stability and anti-interference reliability.

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Efficient frequency estimation using the pulse-pair method at different lags

Cited by 13 publications

References 8 publications

Performance analysis of an autocorrelation based frequency tracker for LFM and QFM signals

Performance analysis of an autocorrelation based frequency tracker for LFM and QFM signals

Efficient time varying frequency tracking using recursive estimation

A New On-line Measurement System of Dielectric Loss Angle for High Voltage Capacitive Apparatus

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