A microwave radar speed measurement and distance measurement system and method for multi-rotor aircraft

Abstract

The invention discloses a microwave radar speed measurement system and method for a multi-rotor aircraft, and the multi-rotor aircraft comprises an external +5V power supply, and the system comprises a power module, a radio frequency module, an intermediate frequency processing module and a control module, wherein the power module, the radio frequency module, the intermediate frequency processing module and the control module are respectively connected with the external +5V power supply. The power module enables external +5V power to be converted into a +2.5V voltage, and provides a reference voltage for the intermediate frequency processing module. The radio frequency module is used for the transmitting and receiving of a microwave radar signal and the control of a transmitted radar wave. The intermediate frequency processing module is used for the analog signal processing of a signal outputted by the radio frequency module through a simulation circuit. The control module is used for the analog-digital conversion of the signal outputted by the intermediate frequency processing module, solves the speed and distance through a digital signal processing method, and communicates with an upper computer in a wireless manner. The system can detect the real movement parameters of the aircraft in real time. Through the principles of microwave radar, the impact on the system from the external weather and indoor and outdoor conditions is smaller.

Description

technical field [0001] The invention relates to the field of sensors for multi-rotor aircraft, in particular to a microwave radar speed measuring and ranging system and method for multi-rotor aircraft. Background technique [0002] Multi-rotor aircraft (especially quad-rotor aircraft, hereinafter referred to as aircraft) is a very popular research field at present. Van Blyenburgh P.'s "UAVs: an Overview" article mentioned that aerial robots can greatly reduce human labor costs, and at the same time are suitable for entering some dangerous and small places, so they are considered to have great development potential. [0003] However, the article "The Navigation and Control technology inside the AR.Drone micro UAV" by Bristeau P J, Callou F, Vissiere D et al. mentioned that the prerequisite for realizing the autonomous flight and task execution of the aircraft is the accurate measurement of its own flight motion parameters . For example, during an emergency landing, external...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing multi-rotor aircraft is difficult to obtain the relative velocity value and altitude value with the real surface when flying in the air. The present invention proposes a microwave radar speed measurement and ranging system for multi-rotor aircraft and method

Images