Relationship between Resolution and Velocity Measurement Accuracy of Distance and Velocity Sensor based on Self-coupling Effect

2021 ◽  
Vol 141 (12) ◽  
pp. 1250-1255
Author(s):  
Masanari Yamada ◽  
Daiki Sato ◽  
Daisuke Mizushima ◽  
Keishiro Goshima ◽  
Norio Tsuda ◽  
...  
Keyword(s):  
Velocity Measurement ◽  
Measurement Accuracy ◽  
Coupling Effect ◽  
Velocity Sensor

Research on Velocity Measurement of PD Radar Based on Non-Coherent Accumulation and Waveform Analysis

2014 ◽  
Vol 513-517 ◽  
pp. 2999-3002
Author(s):  
Xu Dong Zhang ◽  
Yun Neng Yuan ◽  
Jun Wang
Keyword(s):  
Radial Velocity ◽  
Target Tracking ◽  
Velocity Measurement ◽  
Measurement Accuracy ◽  
Waveform Analysis ◽  
Radar Target ◽  
Running Time ◽  
Coherent Accumulation ◽  
High Measurement ◽  
High Measurement Accuracy

According to the process of PD radar target tracking, the radial motion of target has a significant impact on velocity measurement. Simulation shows that there is an apparent relation between radial velocity and non-coherent accumulated waveform. Based on the calculation of the entropy of non-coherent accumulated waveform, a method based on waveform entropy in velocity measurement is proposed. Experiments show that the new method can achieve high measurement accuracy, and is insensitive to velocity. At the same time, a rough estimation of velocity is used to shorten the running time.

Dual-Doppler Radar Coverage Area as a Function of Measurement Accuracy and Spatial Resolution

1979 ◽  
Vol 18 (9) ◽  
pp. 1229-1233 ◽  
Author(s):  
Robert P. Davies-Jones
Keyword(s):  
Spatial Resolution ◽  
Velocity Measurement ◽  
Measurement Accuracy ◽  
Doppler Radar ◽  
Horizontal Velocity ◽  
Coverage Area ◽  
Dual Doppler Radar

Abstract The area effectively covered by dual-Doppler radars is presented as a function of spatioal resolution and accuracy of horizontal velocity measurement. Implications of this relationship for the spacing of a dual-Doppler network tornadic storm research are discussed.

Impact of Attitude Errors on Three-Dimensional Velocity Measurement Accuracy of Airborne Laser Doppler

2014 ◽  
Vol 51 (4) ◽  
pp. 041402
Author(s):  
张月新 Zhang Yuexin ◽  
牛燕雄 Niu Yanxiong ◽  
韩凤山 Han Fengshan ◽  
范哲 Fan Zhe ◽  
孙绪印 Sun Xuyin ◽  
...  
Keyword(s):  
Velocity Measurement ◽  
Measurement Accuracy ◽  
Three Dimensional ◽  
Laser Doppler ◽  
Airborne Laser

scholarly journals Analysis of the Strapdown Inertial Navigation System (SINS) Error Genesis

2018 ◽  
Vol 6 (1) ◽  
pp. 44-54
Author(s):  
Pjotrs Trifonovs-Bogdanovs ◽  
Anvar Zabirov
Keyword(s):  
Angular Velocity ◽  
Navigation System ◽  
Velocity Measurement ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Strapdown Inertial Navigation System ◽  
Critical Element ◽  
Velocity Sensor ◽  
Strapdown Inertial Navigation

Abstract Analysis and simulation of the Strapdown Inertial Navigation System (SINS) error genesis revealed that the East Feedback Contour has the greatest influence on the development of an error in this model, and angular velocity sensor Δω𝒚 is the critical element. In order to prevent the development of an error, structural correction in the East Feedback Contour, and elements that are more critical, namely in angular velocity measurement sensors is the best option.

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