The principle of using millimeter wave radar sensor to realize virtual mouse is to control the movement and clicking operation of the mouse by detecting the movement of the user's finger. Specifically, the millimeter wave radar can detect the position and movement trajectory of the user's finger in space, and then convert this information into the mouse's moving and clicking operations. For example, when the user's finger moves in space, the millimeter wave radar can detect changes in the position of the finger and convert these changes into movement operations of the mouse; when the user's finger makes clicking motions, the millimeter wave radar can detect the clicking motions of the finger and convert these motions into clicking operations of the mouse.
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