[問題] Adjacen Channel Intereference
以下為想求教的題目
The spectrum for traditional cellular transmission was divided into a set of
channels each of width 30 kHz. Channel selection filtering was carried out
mainly at either at the IF or at baseband, with the RF filter admitting most
of the cellular band. Suppose the difference in received signal powers among
users as they roam the cell could be as much as 30 dB.
a) Suppose the IP3=50 dBm (v=10 V) and the power amplifier gain is 10. At
what voltage will the received desired signal be 20 dB larger than the worst
case adjacent interfering signal?
我在解題的過程中使用了對IP3 point的定義去推算出了gm3的值
但是接下來不知道該如何與Worst case做比較，想麻煩有經驗的大大指導
再次麻煩各位了
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