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Design considerations for a microprocessor-based Doppler radar
Microprocessors and Microsystems ( IF 2.6 ) Pub Date : 2020-06-24 , DOI: 10.1016/j.micpro.2020.103182
Oday A.L.A. Ridha , Ghassan N. Jawad

This paper presents the main design considerations for microprocessors used in velocity-time measurement systems. By processing the output signal from a continuous-wave Doppler radar, the microprocessor is used to find and track the velocity of a moving target. Tracking the changes in the object's velocity with the time, as requires by numerous modern applications, entails intense inspection of the Doppler signal. This sets a challenge for the hardware and software parts of the electronic system involved in this process. After presenting the possible approaches that can be followed to process the Doppler signal, the paper reports the main conditions under which any microprocessor-based system can implement these approaches effectively. In addition, the relative uncertainty relations of the velocity measured using each approach are analyzed and derived. Next, a dsPIC33 microcontroller system in conjunction with an X-band Doppler radar is used to employ one of the reported methods. The implemented system proves the possibility of realizing a simple, compact and affordable electronic system for any type of Doppler radar by following the same design considerations to provide the user with the necessary information about any moving object. The findings of this paper provide an important tool for system designers by highlighting the main factors affecting the design parameters for microcontroller systems used for velocity-time measurements.



中文翻译:

基于微处理器的多普勒雷达的设计注意事项

本文介绍了速度时间测量系统中使用的微处理器的主要设计注意事项。通过处理来自连续波多普勒雷达的输出信号,微处理器可用于查找和跟踪运动目标的速度。跟踪物体速度随时间的变化,这是许多现代应用程序所要求的,需要对多普勒信号进行严格检查。这给该过程中涉及的电子系统的硬件和软件部分提出了挑战。在介绍了可以遵循的处理多普勒信号的可能方法之后,本文报告了任何基于微处理器的系统都可以有效实现这些方法的主要条件。此外,分析并推导了每种方法测得的速度的相对不确定度关系。接下来,将dsPIC33单片机系统与X波段多普勒雷达配合使用,以采用已报道的方法之一。通过遵循相同的设计考虑因素,为用户提供有关任何移动物体的必要信息,所实施的系统证明了为任何类型的多普勒雷达实现简单,紧凑且价格合理的电子系统的可能性。本文的研究结果通过突出影响速度时间测量所用微控制器系统的设计参数的主要因素,为系统设计人员提供了重要的工具。通过遵循相同的设计考虑因素,为用户提供有关任何移动物体的必要信息,所实施的系统证明了为任何类型的多普勒雷达实现简单,紧凑且价格合理的电子系统的可能性。通过突出影响速度时间测量所用微控制器系统设计参数的主要因素,本文的研究结果为系统设计人员提供了重要的工具。通过遵循相同的设计考虑因素,为用户提供有关任何移动物体的必要信息,所实施的系统证明了为任何类型的多普勒雷达实现简单,紧凑且价格合理的电子系统的可能性。本文的研究结果通过突出影响速度时间测量所用微控制器系统的设计参数的主要因素,为系统设计人员提供了重要的工具。

更新日期:2020-06-24
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