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全网最快!「四邮四电」26考研真题对答案汇总!建议收藏,估分快人一步!

  • 2026-01-10 15:04:08
全网最快!「四邮四电」26考研真题对答案汇总!建议收藏,估分快人一步!

27电子通信考研群

26电子通信考研群

电子科技大学(858)信号与系统

本答案根据同学回忆题目整理，难免有不完整疏漏之处，欢迎大家批评指正。

完整版答案解析进群领取

西安电子科技大学(811)信号与系统、电路

西安电子科技大学(821)电路、信号与系统

本答案根据同学回忆题目整理，难免有不完整疏漏之处，欢迎大家批评指正。

完整版答案解析进群领取

南京邮电大学(801)通信原理

南京邮电大学(813)电路分析

本答案根据同学回忆题目整理，难免有不完整疏漏之处，欢迎大家批评指正。

完整版答案解析进群领取

杭州电子科技大学(843)信号与系统

杭州电子科技大学(845)信号与系统分析

本答案根据同学回忆题目整理，难免有不完整疏漏之处，欢迎大家批评指正。

完整版答案解析进群领取

重庆邮电大学(801)信号与系统

重庆邮电大学(808)数字电路与逻辑设计

本答案根据同学回忆题目整理，难免有不完整疏漏之处，欢迎大家批评指正。

完整版答案解析进群领取

西安邮电大学(823)电子技术基础

西安邮电大学(824)信号与系统

本答案根据同学回忆题目整理，难免有不完整疏漏之处，欢迎大家批评指正。

完整版答案解析进群领取

桂林电子科技大学(806)电路、信号与系统

本答案根据同学回忆题目整理，难免有不完整疏漏之处，欢迎大家批评指正。

完整版答案解析进群领取

北京邮电大学(801)通信原理

北邮801最新考情难度速递：北邮801通信原理整体相较于去年大幅增加，选择题难度提升不是很大，但有一两个题目挖的有坑。

大题难题提升很大，其中第二三大题比较常规，第四五六七八大题均做了一定的创新，例如第五大题的后验概率，这道题相信很多人没有接触过类似题目，往年曾有一道小题求过后验概率；第六题求复信号的自相关以及功率谱，这道题对数学能力要求很高，难度较大；第七题考察香农公式，这次直接将香农公式作为一道完整的大题出了，对此公式进行了较为深入的考察；第八题的和后两问找错误图样也与以往题目不同寻常，这次题目给的译码后的码字和发送码字并不相同，非常考察大家对信道编码纠错这部分内容的理解。

总的来说，整体难度提升比较大。

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  1. CONNECT:[ UseTime:0.000564s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000856s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000388s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.002074s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000479s ]
  6. SELECT * FROM `set` [ RunTime:0.000163s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000499s ]
  8. SELECT * FROM `article` WHERE `id` = 457770 LIMIT 1 [ RunTime:0.004426s ]
  9. UPDATE `article` SET `lasttime` = 1768301691 WHERE `id` = 457770 [ RunTime:0.003355s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000274s ]
  11. SELECT * FROM `article` WHERE `id` < 457770 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.004756s ]
  12. SELECT * FROM `article` WHERE `id` > 457770 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.008010s ]
  13. SELECT * FROM `article` WHERE `id` < 457770 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.007339s ]
  14. SELECT * FROM `article` WHERE `id` < 457770 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001063s ]
  15. SELECT * FROM `article` WHERE `id` < 457770 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001064s ]
0.106693s