Spatial resolution analysis of low frequency UWB one-stationary bistatic SAR

2015 ◽  
Author(s):  
Hongtu Xie ◽  
Daoxiang An ◽  
Xiaotao Huang ◽  
Zhimin Zhou ◽  
Tian Jin
Keyword(s):  
Spatial Resolution ◽  
Low Frequency ◽  
Bistatic Sar ◽  
Resolution Analysis

Spatial resolution analysis of low frequency UWB SAR

2015 ◽  
Author(s):  
Hongtu Xie ◽  
Daoxiang An ◽  
Xiaotao Huang ◽  
Zhimin Zhou
Keyword(s):  
Spatial Resolution ◽  
Low Frequency ◽  
Resolution Analysis

Glucose and Lactate Miniaturized Biosensors for SECM-Based High-Spatial Resolution Analysis: A Comparative Study

ACS Sensors ◽  
2017 ◽  
Vol 2 (9) ◽  
pp. 1310-1318 ◽  
Author(s):  
Alice Soldà ◽  
Giovanni Valenti ◽  
Massimo Marcaccio ◽  
Marco Giorgio ◽  
Pier Giuseppe Pelicci ◽  
...  
Keyword(s):  
Comparative Study ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Resolution Analysis

Voltage Flicker Extraction Based on Wavelet Analysis

2013 ◽  
Vol 385-386 ◽  
pp. 1389-1393 ◽  
Author(s):  
Lin Chai ◽  
Jun Ru Sun
Keyword(s):  
Low Frequency ◽  
Matlab Simulation ◽  
Time Frequency ◽  
Multi Resolution Analysis ◽  
Voltage Signal ◽  
Time Frequency Localization ◽  
Resolution Analysis ◽  
Modulus Maximum ◽  
Voltage Flicker ◽  
Non Stationary Signal

Extracting voltage flicker from the sampling voltage signal is a precondition for management of flicker. Voltage flicker signal is a low frequency time-varying non-stationary signal. The traditional fourier transform has great limitations when analyze the non-stationary signal for not having the time resolution. As wavelet transform has good property of time-frequency localization, it become a powerful tool for analyze this kind of signal. This paper adopts multi-resolution analysis of wavelet to extract voltage flicker signal. Furthermore, according to the characteristics of wavelet function, this paper selects Daubechies wavelet to accomplish the multi-level decomposition and reconstruction of signal, in order to get the frequency and amplitude of voltage flicker signals. Based on the principle of modulus maximum, it can be determined what time the voltage flicker happen and over. The results of MATLAB simulation indicate that voltage flicker signal can be effectively extracted by wavelet multi-resolution analysis. Wavelet multi-resolution analysis is considerably ideal for voltage flicker extraction.

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