淡江大學機構典藏:Item 987654321/52490
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/52490


    Title: 使用溫度感測器以調節放大器自動增益控制
    Other Titles: Measurement and analysis of using a temperature sensor to adjust amplifier AGC
    Authors: 何應森;Ho, Ying-sen
    Contributors: 淡江大學電機工程學系碩士在職專班
    李揚漢
    Keywords: 溫度感測器;FLASH--正交分頻多工;自動增益控制電路;訊雜比;服務品質;Temperature Sensor and FLASH-OFDM;AGC;ETSI;FCC;SNR;QoS
    Date: 2010
    Issue Date: 2010-09-23 17:51:14 (UTC+8)
    Abstract: 利用溫度Sensor調控放大器功率補償的機制，以得到好處。當行動終端台被廣泛的應用狀態時，當內外部的溫度變化，同時會影響接收和發射訊號差異時，為了要維持住行動台之良好的服務品質，可以利用溫度Sensor來修補調適LNA強度及輸出功率調控技術，以維持行動台傳輸的良好服務品質，確保資料能正確傳送。
    由於AGC控制器需根據輸出功率比值，有效率的控制發射的輸出功率及接收前置放大的增益來穩定維持符合(European Telecommunications Standards Institute, ETSI)或(Federal Communications Commission, FCC )的標準，所以需發展出一套合理的調控機制和品質控制管理，透過精細的AGC值界定合適調變。由於行動台在不同的溫度環境下其效能表現不盡相同，所以其界限值也會有所不同，模擬不同溫度之條件狀態下調適輸出率，將可維持穩定的Output Power和SNR界限值。
    提出行動台移動在不同環境下之適應技術機制方式，整合出符合法規及市場需求的移動裝置，提供裝置在溫度變化時能夠維持適用調控方式,與基地台溝通時得到較穩定的選擇機制。
    To use the temperature sensor to adjust the amplifier power compensation mechanism in order to get beneficial results. When there is an extensive application of mobile terminal station to result in interior and exterior temperature changes and affecting the reception and emission signal variances, and in order to maintain good quality services of the mobile station, we can use the temperature sensor to adjust the LNA strength and output power control technology. This will help maintain good quality transmission services of the mobile station and to ensure correct data transmission.
    Under such Automatic Gain Control (AGC) mechanism, as the AGC controller needs to follow the output power ratio to effectively control the output emission power and to receive a stabilized pre-amplification gain to comply with European Telecommunications Standards Institute (ETSI) or Federal Communications Commission (FCC) standard, therefore, there is a need to develop a reasonable control mechanism and quality control management through a fine AGC value to define an appropriate modulation. As the efficiency performance of mobile station varies depending on different temperatures, so will its limiting value. Tuning the output rate under different temperature simulations is able to maintain a steady output power and SNR limiting value.
    This study proposes a technical adaptation mechanism for the mobility of mobile station under different environments with the aim to organize a mobile device that complies with regulations and market needs. This device will be able to maintain an appropriate tuning measure in the event of temperature changes to get the most stable selection mechanism while communicating with the base station.
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Thesis

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