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27电子通信考研,只考一门专业课汇总(含专业课分析)

  • 2026-03-18 21:12:57
27电子通信考研,只考一门专业课汇总(含专业课分析)
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大家好,我是光子!

选什么专业课,一直以来是考研初期让人头疼的问题。特别是26年由于统考科目相对简单,分数大涨,统考科目相同时,最大的变量就是专业课了。

不同专业课难度千差万别,各有各的出题风格,能考的学校也是大不相同。今天光子给大家整理了一份只考一门专业课的院校汇总,包含主流专业课、统考科目以及难度分析,并做了院校层次分类,一起来看下吧~

01
信号与系统

信号与系统涉及数学方面的知识更多,对于数学的要求较高,所以对于跨考生,首选就是信号与系统。同时信号与系统最热门,考核这门课的院校最多,且近年来有增多趋势,常常以单独出现或者与其他科目组合的形式作为考试内容,常见的组合有:信号与系统+通信原理、信号与系统+电路分析等。信号与系统版本非常多,主流版本有:郑君里、吴大正、奥本海姆,之前我也做过难度分析。

篇幅问题仅展示部分,完整版在公众号后台发送:只考信号,获取!

02
数字电子技术

也就是我们常说的数电,数电主流参考书为《数字电子技术基础》阎石、《电子技术基础数字部分》康华光这两个版本教材。这门课考试形式一般为小题+大题组合,小题注重细节,例画图题要看清时钟是下降沿还是上升沿,各种触发器、真值表需要记忆。分析题和设计题是最关键的两部分,大题的题型一般比较固定,一般就是涉及考纲上的内容,建议有时间最好把考纲上的要求都当做大题来准备,这部分是数电的复习重点,要保证熟练掌握每一种类型的分析设计题。现在很多高校的考题越来越倾向于变化,并不再一味地考察单一的知识点,所以书上的例题一定要弄懂。

篇幅问题仅展示部分,完整版在公众号后台发送:只考数电,获取!

03
模拟电子技术

模电这门课重在理解,而且计算量大,出题难度上限高,但是知识点固定,主流参考书为《模拟电子技术基础》童诗白、《电子技术基础模拟部分》康华光这两个版本,两本书整体难度一致,章节差不多可以相互对应,知识点数量没有明显差异。想学好模电,要吃透课本例题和课后习题。放大反馈题形式多样,要多做练习,绘图题可以参考往年真题,常常会有每年必考内容,例如波特图和补偿等。此单独只考模电的学校很少大多数以数电+模电的形式考查,一般分数各占一半。

在公众号后台发送:只考模电,获取高清版!

04
数电+模电

考虑到专业课考查涉及到数模电的院校,大多以两门课同时考查的形式出现,所以光子也给大家做了汇总!

篇幅问题仅展示部分,完整版在公众号后台发送:只考数模电,获取!

05
电路

电路计算量很大,但型相对固定,更侧重“物理模型”的数学建模(如微分方程、复数运算),典型题型有:基尔霍夫定律的节点电压法应用;RC 电路的零输入响应曲线绘制;阻抗串联/并联等等效计算等。参考书推荐以邱关源《电路》为主,刷《电路学习指导预习题解析》(对应邱关源教材),按照每一章做完刷对应的习题,目标院校真题至少刷 3 遍,总结命题规律,把几种固定的题型吃透是能够得高分的。

篇幅问题仅展示部分,完整版在公众号后台发送:只考电路,获取!

06
通信原理

只考通原的院校选择较少。通信原理对于初学者来说比较抽象,较难入手,对于数学基础要求比较高,需要理解抽象概念并建立系统思维,这样才可以比较好地理解如调制解调的物理意义。参考书以樊昌信《通信原理》为主,结合周炯槃《通信原理》深化理论,奥本海姆《通信系统》辅助理解工程应用(用书选择主要根据院校公布的对应参考书目)。往往一道计算题分值很大,计算的时候往往漏掉一个细节就可能导致整个题计算错误,导致丢分严重,对于这门课来说,课本上的例题和练习题是非常经典的,考试题很可能就是这些题的改编。

在公众号后台发送:只考通原,获取高清版!

07
数字信号处理

单独数字信号处理考的学校很少,不少院校将专业课命名为信号与系统,参考书中没有 DSP 教材,却还是会涉及 DSP 内容,而且不少同学会轻视DSP的学习。不同层次院校考察难度差异特别大,真题难度较高,综合性强,注重理论推导与实际应用的结合,例如 FFT 算法推导、高级滤波器设计等题型,计算量大,涉及知识点广泛。考查范围相对固定,例如 DFT 计算是必考内容,建议在每学完一章后,结合教材例题和课后习题进行巩固练习,同时多总结解题套路,刚开始做真题时可能会觉得计算量大、耗时长,但只要坚持总结错题并查漏补缺,就能逐渐提高解题速度和准确率,最终拿到高分。

在公众号后台发送:只考数处,获取高清版!

电子教材可以在公众号后台发送关键词:教材

常见的专业课考查有这六门课,差不多包含了所有热门院校。选择只考一门专业课,有利有弊,学习压力较小,但上岸竞争也更大,特别是选择英二数二+一门专业课的同学,要早一点开始备考了。

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  1. CONNECT:[ UseTime:0.000970s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001601s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000714s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000690s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001391s ]
  6. SELECT * FROM `set` [ RunTime:0.030276s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001557s ]
  8. SELECT * FROM `article` WHERE `id` = 465058 LIMIT 1 [ RunTime:0.024425s ]
  9. UPDATE `article` SET `lasttime` = 1773957847 WHERE `id` = 465058 [ RunTime:0.002736s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000711s ]
  11. SELECT * FROM `article` WHERE `id` < 465058 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001042s ]
  12. SELECT * FROM `article` WHERE `id` > 465058 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003285s ]
  13. SELECT * FROM `article` WHERE `id` < 465058 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.005363s ]
  14. SELECT * FROM `article` WHERE `id` < 465058 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.014728s ]
  15. SELECT * FROM `article` WHERE `id` < 465058 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.007883s ]
0.263837s