Phase Measurement Accuracy with Modulated Sounding Signals

1968 ◽  
Vol 16 (3) ◽  
pp. 419-429 ◽  
Author(s):  
D. Arnstein
Keyword(s):  
Measurement Accuracy ◽  
Phase Measurement

Laser Diode Self-Mixing Interference Based on Phase Measurement Method

2008 ◽  
Vol 381-382 ◽  
pp. 247-250
Author(s):  
Ming Wang ◽  
Dong Mei Guo
Keyword(s):  
Laser Diode ◽  
Phase Modulation ◽  
Signal Analysis ◽  
Measurement Method ◽  
Measurement Accuracy ◽  
Phase Measurement ◽  
External Cavity ◽  
Experimental System ◽  
Measurement Results ◽  
Measurement Principle

In order to improve the displacement measurement accuracy of the laser diode self-mixing interference (SMI), phase measurement method is introduced in the SMI signal analysis. In this paper, three modulation technique have been proposed: injection current modulation, external cavity length modulation and sinusoidal phase modulation. Measurement principle of the three modulation techinque are briefly explained. Design of the experimental system, measurement results of micro-displacement will be reported.

Phase measurement accuracy in noise waveform synthetic aperture radar

2015 ◽  
Vol 51 (4) ◽  
pp. 3364-3373 ◽  
Author(s):  
Kostyantyn A. Lukin ◽  
Pavlo L. Vyplavin ◽  
Vladimir P. Palamarchuk ◽  
Volodymyr V. Kudriashov ◽  
Krzysztof Kulpa ◽  
...  
Keyword(s):  
Synthetic Aperture Radar ◽  
Measurement Accuracy ◽  
Phase Measurement ◽  
Synthetic Aperture ◽  
Aperture Radar

scholarly journals Differential Phase Measurement Accuracy of a Monobit Receiver

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 69672-69681 ◽  
Author(s):  
Jason Reneau ◽  
Reza R. Adhami
Keyword(s):  
Measurement Accuracy ◽  
Phase Measurement ◽  
Differential Phase

Factors affecting phase measurement accuracy in acousto-optic phase processor

2001 ◽  
Author(s):  
Mieczyslaw Szustakowski ◽  
Leon Jodlowski ◽  
Robert Bobrowicz
Keyword(s):  
Measurement Accuracy ◽  
Phase Measurement ◽  
Factors Affecting

Phase measurement accuracy of feedback interferometers

2002 ◽  
Vol 38 (6) ◽  
pp. 387-404 ◽  
Author(s):  
T.H Barnes ◽  
T Eiju ◽  
D.C.L Cheung ◽  
C.Y Wu
Keyword(s):  
Measurement Accuracy ◽  
Phase Measurement

scholarly journals Comparative Study of AC Signal Analysis Methods for Impedance Spectroscopy Implementation in Embedded Systems

2022 ◽  
Vol 12 (2) ◽  
pp. 591
Author(s):  
Ahmed Yahia Kallel ◽  
Zheng Hu ◽  
Olfa Kanoun
Keyword(s):  
Fourier Transform ◽  
Impedance Spectroscopy ◽  
Signal Analysis ◽  
Measurement Accuracy ◽  
Phase Measurement ◽  
Nonlinear Least Squares ◽  
Hardware Acceleration ◽  
Fitting Method ◽  
Overall Performance ◽  
Memory Constraints

For embedded impedance spectroscopy, a suitable method for analyzing AC signals needs to be carefully chosen to overcome limited processing capability and memory availability. This paper compares various methods, including the fast Fourier transform (FFT), the FFT with barycenter correction, the FFT with windowing, the Goertzel filter, the discrete-time Fourier transform (DTFT), and sine fitting using linear or nonlinear least squares, and cross-correlation, for analyzing AC signals in terms of speed, memory requirements, amplitude measurement accuracy, and phase measurement accuracy. These methods are implemented in reference systems with and without hardware acceleration for validation. The investigation results show that the Goertzel algorithm has the best overall performance when hardware acceleration is excluded or in the case of memory constraints. In implementations with hardware acceleration, the FFT with barycentre correction stands out. The linear sine fitting method provides the most accurate amplitude and phase determinations at the expense of speed and memory requirements.

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