Simulation Analysis of Time Discrimination Module Error in Underwater Short Range Laser Ranging System

Wang, Deli; Zha, Bingting; Tan, Yayun; Zhang, Leqi

doi:10.1109/icinfa.2018.8812362

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…The angular resolution of the 3D imaging system, i.e., the corresponding instantaneous field-of-view angle of the LM-APD pixel, is shown in Equation (23).…”

Section: Analysis Of the 3d Imaging Performance Of Lm-apd Arraysmentioning

confidence: 99%

“…where arg t is the value of t that satisfies the function requirement. In cases where the hardware parameters of the constant ratio timing circuit are known, the extraction of the target distance value can also be implemented by building the corresponding analog circuit in Simulink according to the literature [23], in order to accurately characterize the effects of noise and device parameters on the moment identification accuracy. Figure 15a shows the circuit diagram of the constant ratio timing circuit for signal attenuation with delay to generate the over-zero signal.…”

Section: mentioning

confidence: 99%

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Analysis and Simulation of Space-Based LM-APD 3D Imaging

Wang

Lin²,

Zhang³

et al. 2023

Electronics

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The linear mode avalanche photodiode (LM-APD) array has the capability of real-time 3D imaging for moving targets, which is a promising 3D imaging means in space. The main system parameters of the LM-APD array 3D imaging system, the characteristics of the space target itself, and the relative positional relationship between them will affect the 3D imaging results at the same time, and there is a need for an appropriate simulation method to describe the space target point cloud acquired by the LM-APD array 3D imaging system under different conditions. We propose a simulation method for the 3D imaging of space targets with LM-APD arrays, which takes the characteristics of the space targets and the relative position into consideration, and build a link from the laser to the receiving system to simulate the echo waveform of each pixel in the LM-APD array. The experiment results under different conditions show that the proposed simulation method can accurately describe the imaging results of the LM-APD array 3D imaging system for space targets with different shapes, materials, and motion states, which providing theoretical and data support for the design of LM-APD array 3D imaging systems.

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“…The angular resolution of the 3D imaging system, i.e., the corresponding instantaneous field-of-view angle of the LM-APD pixel, is shown in Equation (23).…”

Section: Analysis Of the 3d Imaging Performance Of Lm-apd Arraysmentioning

confidence: 99%

Section: mentioning

confidence: 99%

Analysis and Simulation of Space-Based LM-APD 3D Imaging

Wang

Lin²,

Zhang³

et al. 2023

Electronics

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show abstract

“…Introduction: Distance measurement, which uses technical means such as a measuring stick or electromagnetic wave to obtain the length of the connecting line between two points, is a common measurement work in daily life. At present, high-precision distance measurement technology has been widely applied in the fields of precision instrument manufacturing, aerospace, navigation positioning, and length baseline calibration [1][2][3][4]. With the development of electromagnetic wave technology and high-end manufacturing, precision ranging technology has evolved from the initial mechanical measurement method to high-precision electromagnetic wave measurement technology.…”

mentioning

confidence: 99%

Design of variable frequency dual transponder system for fixed point ranging

Xiaoxu,

Zhaobin,

Jiacheng

et al. 2023

Electronics Letters

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Aiming at the problems of high system cost, complex ranging process, low ranging accuracy, and limited measurement distance in commonly used methods for ground fixed point distance measurement journals, a variable frequency microwave ranging system based on a dual transponder architecture is proposed in this letter. The system uses carrier dual transponder as an active forwarding architecture, utilizing the digital phase‐locked loop to obtain the high‐precision phase difference between two signals, and resolving the ambiguity through microwave frequency sweep within a certain range. The simulation results show that the system can quickly obtain the unambiguous distance between two fixed points, besides, driven by a high‐stability crystal oscillator, submillimetre accuracy can be achieved in km‐level ranging.

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Simulation Analysis of Time Discrimination Module Error in Underwater Short Range Laser Ranging System

Cited by 2 publications

References 3 publications

Analysis and Simulation of Space-Based LM-APD 3D Imaging

Analysis and Simulation of Space-Based LM-APD 3D Imaging

Design of variable frequency dual transponder system for fixed point ranging

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