Improved RMS Delay Spread Estimation for mmWave Channels Using Savitzky–Golay Filters

In this paper, a novel method for improving the estimation accuracy of the root mean square (RMS) delay spread from the magnitude of the Channel Transfer Function (CTF) is presented. We utilize the level crossing rate metric in the frequency domain, which is based on scalar power measurement. The Savitzky–Golay (S-G) filtering method is used to improve the fidelity of the channel delay spread estimator. The presented concept is simple to implement and inexpensive. The proposed method is tested on the CTF magnitude data measured in the mmWave frequency band at low Signal-to-Noise Ratio (SNR).

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On estimating the RMS delay spread from the frequency-domain level crossing rate

IEEE Communications Letters ◽

10.1109/4234.935744 ◽

2001 ◽

Vol 5 (7) ◽

pp. 287-289 ◽

Cited By ~ 25

Author(s):

K. Witrisal

Keyword(s):

Frequency Domain ◽

Delay Spread ◽

Level Crossing ◽

Rms Delay Spread ◽

Level Crossing Rate ◽

Domain Level

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A Novel RMS Delay Spread Estimation for Wireless OFDM Systems

IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences ◽

10.1093/ietfec/e89-a.10.2558 ◽

2006 ◽

Vol E89-A (10) ◽

pp. 2558-2565 ◽

Cited By ~ 1

Author(s):

X. XU ◽

Y. JING ◽

X. YOU ◽

J. ZHAO

Keyword(s):

Delay Spread ◽

Ofdm Systems ◽

Rms Delay Spread ◽

Spread Estimation

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Channel order and RMS delay spread estimation with application to AC power line communications

Digital Signal Processing ◽

10.1016/s1051-2004(02)00030-1 ◽

2003 ◽

Vol 13 (2) ◽

pp. 284-300 ◽

Cited By ~ 10

Author(s):

Hongbin Li ◽

Duixian Liu ◽

Jian Li ◽

Petre Stoica

Keyword(s):

Power Line ◽

Delay Spread ◽

Power Line Communications ◽

Rms Delay Spread ◽

Ac Power ◽

Spread Estimation

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Influence of noise on a novel RMS delay spread estimation method

11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525) ◽

10.1109/pimrc.2000.881486 ◽

2002 ◽

Cited By ~ 9

Author(s):

K. Witrisal ◽

A. Bohdanowicz

Keyword(s):

Estimation Method ◽

Delay Spread ◽

Rms Delay Spread ◽

Spread Estimation ◽

Influence Of Noise

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A novel RMS delay-spread estimation technique for wireless OFDM systems

Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint ◽

10.1109/icics.2003.1292529 ◽

2004 ◽

Author(s):

C.R.N. Athandage ◽

A.D.S. Jayalath

Keyword(s):

Delay Spread ◽

Estimation Technique ◽

Ofdm Systems ◽

Rms Delay Spread ◽

Spread Estimation

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Improving Pulse Phase Estimation Accuracy with Sampling and Weighted Averaging

Journal of Navigation ◽

10.1017/s0373463318001066 ◽

2019 ◽

Vol 72 (04) ◽

pp. 1007-1020

Author(s):

Haoye Lin ◽

Bo Xu

Keyword(s):

Signal To Noise Ratio ◽

Weighted Average ◽

Correlation Method ◽

Weighted Averaging ◽

Estimation Accuracy ◽

Phase Estimation ◽

Pulse Phase ◽

Improve Accuracy ◽

Multiple Measurements ◽

Novel Method

The accuracy in an X-ray pulsar-based navigation system depends mainly on the accuracy of the pulse phase estimation. In this paper, a novel method is proposed which combines an epoch folding process and a cross-correlation method with the idea of “averaging multiple measurements”. In this method, pulse phase is estimated multiple times on the sampled subsets of arriving photons' time tags, and a final estimation is obtained as the weighted average of these estimations. Two explanations as to how the proposed method can improve accuracy are provided: a Signal to Noise Ratio (SNR)-based explanation and an “error-difference trade-off” explanation. Numerical simulations show that the accuracy in pulse phase estimation can be improved with the proposed algorithm.

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