Markdown link check 找到了死链

[Y.D.X.]

有些是虚警，可能需要按文档忽略。

[✖] ../digital-signal-processing/#Fourier-参数之间的关系 → Status: 400
[✖] ../information-theory-and-coding/#平稳与遍历 → Status: 400
[✖] http://opinion.people.com.cn/n1/2020/0811/c1003-31817420.html → Status: 0
[✖] http://www.cssn.cn/lsx/lishixuezhuanti/bwcxljsm/lxzyls/mzd/201801/t20180104_3803925.shtml → Status: 404
[✖] http://www.qstheory.cn/llqikan/2017-12/03/c_1122049424.htm → Status: 404
[✖] http://www.qstheory.cn/zhuanqu/bkjx/2017-12/01/c_1122044946.htm → Status: 404
[✖] https://isip.bit.edu.cn/jxgz/jxzyxz/b142394.htm → Status: 0
[✖] https://web.eecs.utk.edu/~azeumaul/courses/ee531/fall2019/lecturenotes/ECE531-Fall-19-Lecture-07-PN → Status: 404
[✖] https://www.cs.uic.edu/pub/ECE534/WebHome/ch2.pdf → Status: 500
[✖] https://www.jstor.org/stable/2685037 → Status: 403

真·死链

http://www.cssn.cn/lsx/lishixuezhuanti/bwcxljsm/lxzyls/mzd/201801/t20180104_3803925.shtml
http://www.qstheory.cn/llqikan/2017-12/03/c_1122049424.htm
http://www.qstheory.cn/zhuanqu/bkjx/2017-12/01/c_1122044946.htm