GNU Radio 中文社区

http://gnuradio.microembedded.com/

http://php.net/

http://linux.die.net/man/

GNU/Linux Command-Line Tools Summary

http://linux.die.net/Linux-CLI/index.html

The Linux Kernel Module Programming Guide

http://linux.die.net/lkmpg/

The Open Group

http://pubs.opengroup.org/onlinepubs/009696799/mindex.html

http://www.opengroup.org/

W3C

http://www.w3schools.com/php/func_date_mktime.asp

                http://www.linkwan.com/gb/wireless/tech/