無反饋增益 的英文怎麼說
中文拼音 [wúfǎnkuìzēngyì]
無反饋增益
英文
non feed back gain-
By using a new optical input power level detection and signal treatment method to control the gain of the receiver and keep its output level within the required range, a novel feedforward agc optical receiver without radio frequency feedback circuits is realized
我們採用一種入射光功率電平檢測與處理的新方法,對模擬光接收機的增益進行控制,將接收機輸出電平控制在要求的范圍內,實現了一種新型的無射頻反饋電路的自動增益控制光接收機。This paper studies the design methods and techniques of the broadband lna. using negative feedback techniques and lossy match method, a broadband lna acceptable for sdr is presented. the measured results showed that over 30mhz ~ 3000mhz, the lna achieved a maximum noise figure of 2. 0db, a power gain of 22db with gain flatness of less than 2. 0db
本文最後對寬帶低噪聲放大器的設計方法進行了詳細探討,並運用負反饋技術和有損匹配的方法,研製了一種適合軟體無線電應用的寬帶低噪聲放大器,經測試,在30 3000mhz頻率范圍內,噪聲系數nf 2 . 0db ,增益g = 22db 2 . 0db 。Howling, which results from the feedback, restrains the gain increasing and obscures clarity. when feedback goes serious, the public addressing systems even cannot work
由聲反饋引起的嘯叫限制了系統擴聲增益的提高,使聲音產生失真,嚴重時甚至使系統無法正常工作。
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