隨著生理遙測技術的進步，病人可以在日常生活不受干擾之下，讓醫護或是研究人員隨時監控並記錄活動中的生理參數。而這些生理遙測系統一般是利用紅外線或是無線電的方式來傳送這生理參數。本論文使用類比通訊技術來傳遞生醫訊息，並使用鎖相迴路技術，可使載波穩定於所要的頻率，可使接收機解調更為準確以提昇系統之穩定性。

我們所設計的系統規格：調變方式：振幅調變；壓控震盪器頻率：10MHz ~ 110MHz；生醫訊號振幅微小：1~10mV。最後使用台積電0.35mm製程去實現生醫遙測傳輸晶片。若是整個傳輸、接收可以實現，相信對人類的健康是有一定的貢獻。

With the progress of biotelemetry technique, the doctors and nurses or the researcher, can continuously monitor and record the physiological parameters in the activities of the patients who are not interfered in their daily life. The physiological parameters are always transmitted by using the infrared LED or RF in the biotelemetry system. In this paper, we transmit the records by using analog communication technique. In order to increase the system stability, we make the demodulator in receiver more precise by using phase looked loop technique to fix the carrier at some frequency.

The specifications of our designed system are：1.Modulation method： Amplitude Modulation, 2.Operation frequency：10MHz ~ 110MHz ,depending on input reference frequency, 3.Biosignal amplitude：1~10 mV. At last, we design the biotelemetry system chip by using TSMC 0.35mm. If the transmitter and receiver can be realized successfully, the system must provide lots of contribution to people health.

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