[課業] 通訊系統/頻率倍增器:－2016徵求年菜推薦網路訂購最紅的商家.年菜訂購?台北年菜外送餐廳推薦(年菜)?年菜.今年不想做年菜推薦,網路宅配哪一家好?

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批踢踢實業坊 Examination 板

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[課業] 通訊系統/頻率倍增器

Nov 22nd 2013, 09:59, by TFNF

作者TFNF (帕妮飯)

站內Examination

標題[課業] 通訊系統/頻率倍增器

時間Fri Nov 22 09:59:27 2013

這是我的筆記內容 http://miupix.cc/pm-8ITRJF 當初老師上課時說先產生NBFM之信號（如圖 http://miupix.cc/pm-VQTMIO ）再透過頻率倍增器產生寬頻信號我自己推導時首先將Snb(t)用窄帶角度調變的結果帶入，但卻整理不出n倍角的通式，翻了Haylin的書後才發現Snb(t)是帶入FM訊號的通式，而非窄帶角度調變後的結果我的想法如同筆記上的綠字一樣：非以微觀的窄帶調變來看，而是以鉅觀的通式原因是因為，微觀的通式經Taylor series展開並簡化後，乎略掉許多項次，而這些項次經頻率倍增後可能極大，故不能以窄帶調變的通式帶入請問我這樣的想法是正確的嗎？ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 101.14.2.204

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