發明
中華民國
103145467
I 514193
動作感測裝置
國立中山大學
2015/12/21
一種動作感測裝置,其包括第一天線、壓控振盪器、相位偵測器以及訊號處理單元。第一天線接收由一目標物反射第二訊號而產生的第一訊號,以將第一訊號輸出至相位偵測器或壓控振盪器。壓控振盪器接收第一訊號或第二訊號以及接收頻率調整訊號,以依據第一訊號與第二訊號其中之一以及頻率調整訊號產生振盪訊號。相位偵測器接收振盪訊號以及第一訊號與第二訊號其中之另一,並據以產生第一相位輸出訊號以及第二相位輸出訊號。訊號處理單元依據第一相位輸出訊號以及第二相位輸出訊號估測目標物的動作參數。 A motion detection apparatus is provided. The motion detection apparatus includes a first antenna, a voltage-controlled oscillator, a phase detector and a signal processing unit. The first antenna receives a first signal generated by reflecting a second signal by a target object, so as to output the first signal to the phase detector or the voltage-controlled oscillator. The voltage-controlled oscillator receives first signal or the second signal and receives a frequency adjustment signal, so as to generate an oscillating signal according to the frequency adjustment signal and the one of the first signal and the second signal. The phase detector receives the oscillating signal and another one of the first signal and the second signal, and generates a first phase output signal and a second phase output signal. The signal processing unit estimates motion parameters of the target object according to the first and the second phase output signal.
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