以下为想求教的题目 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? 我在解题的过程中使用了对IP3 point的定义去推算出了gm3的值 但是接下来不知道该如何与Worst case做比较，想麻烦有经验的大大指导 再次麻烦各位了 --

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