A Novel UWB SRR for Target Velocity Measurement in Gaussian Noise Environment for Automobile Applications

2014 ◽  
Vol E97.B (1) ◽  
pp. 210-217
Author(s):  
Purushothaman SURENDRAN ◽  
Jong-Hun LEE ◽  
Seok-Jun KO
Keyword(s):  
Gaussian Noise ◽  
Velocity Measurement ◽  
Target Velocity ◽  
Noise Environment

scholarly journals A Novel Adaptive State Detector-Based Post-Filtering Active Control Algorithm for Gaussian Noise Environment with Impulsive Interference

2019 ◽  
Vol 9 (6) ◽  
pp. 1176 ◽  
Author(s):  
Wenzhao Zhu ◽  
Shengguo Shi ◽  
Lei Luo ◽  
Jinwei Sun
Keyword(s):  
Active Control ◽  
Gaussian Noise ◽  
Control Algorithm ◽  
Noise Control ◽  
Impulsive Noise ◽  
Active Noise Control ◽  
Noise Environment ◽  
Fast Tracking ◽  
Impulsive Interference ◽  
State Detector

For Gaussian noise with random or periodic impulsive interference, the conventional active noise control (ANC) methods with finite second-order moments may fail to converge. Furthermore, the intensity of impulsive noise typically varies over time in the actual application, which also decreases the performance of conventional active impulsive noise control methods. To address these problems, a novel adaptive state detector based post-filtering active control algorithm is proposed. In this work, information entropy with adaptive kernel size is first introduced into the cost function of a post-filtering algorithm to improve its tracking. To enhance the robust performance of adaptive filters when impulsive interference happens, a recursive optimal threshold selecting method is also developed and analyzed by statistical theories. Simulations show that the new method has fast tracking ability in non-impulsive noise environment and keeps robust when impulsive interference happens. It also works well for the impulsive noise of different degrees. Experiment results confirm the effectiveness of the proposed algorithm.

A Velocity Measurement Method Based on Scaling Parameter Estimation of a Chaotic System

2011 ◽  
Vol 18 (2) ◽  
pp. 275-282
Author(s):  
Lidong Liu ◽  
Jifeng Hu ◽  
Zishu He ◽  
Chunlin Han ◽  
Huiyong Li ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Numerical Simulations ◽  
Chaotic System ◽  
Velocity Measurement ◽  
Measurement Method ◽  
Chaotic Synchronization ◽  
New Method ◽  
Target Velocity ◽  
Scaling Parameter ◽  
Generating System

A Velocity Measurement Method Based on Scaling Parameter Estimation of a Chaotic SystemIn this paper, we propose a new method of measuring the target velocity by estimating the scaling parameter of a chaos-generating system. First, we derive the relation between the target velocity and the scaling parameter of the chaos-generating system. Then a new method for scaling parameter estimation of the chaotic system is proposed by exploiting the chaotic synchronization property. Finally, numerical simulations show the effectiveness of the proposed method in target velocity measurement.

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