我正在尝试实施一种非常简单的方案,以将数据从一个sdr板传输到另一个sdr板。我使用的是GnuRadio 3.7.14,我在随播广告中的方案如下:
源文件是一个96字节长的二进制文件,看起来像这样
00000000 00 00 00 ff aa aa aa aa aa aa aa aa aa aa aa aa |................| 00000010 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00000020 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00000030 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000060
在输出时,我希望在输入一些杂音之后会重复输入模式(也许会有一些错误),但实际上看起来像这样
00004610 00 00 00 1f f5 55 55 55 55 55 55 55 55 55 55 55 |.....UUUUUUUUUUU| 00004620 55 55 55 55 55 55 55 55 53 63 eb ea aa a8 aa aa |UUUUUUUUSc......| 00004630 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004640 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004650 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004660 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 88 |................| 00004670 80 00 00 7f d5 55 55 55 55 55 55 55 55 55 55 55 |.....UUUUUUUUUUU| 00004680 55 55 55 55 55 55 55 0d 0b a2 aa aa aa aa aa aa |UUUUUUU.........| 00004690 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 000046a0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 000046b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000046c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000046d0 00 00 01 ff 55 55 55 55 55 55 55 55 55 55 55 51 |....UUUUUUUUUUUQ| 000046e0 15 61 55 31 75 fc aa aa aa aa aa aa aa aa aa aa |.aU1u...........| 000046f0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004700 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa a8 |................| 00004710 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004720 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004730 00 00 03 fe aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004740 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004750 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004760 aa aa 9a ac 6e 8a db 59 3c ae aa b8 aa ac aa a8 |....n..Y<.......| 00004770 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004780 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004790 00 00 07 fd 55 55 55 55 55 55 55 55 55 55 55 55 |....UUUUUUUUUUUU| 000047a0 55 55 55 55 55 55 55 55 55 45 55 55 55 55 5b 55 |UUUUUUUUUEUUUU[U| 000047b0 28 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |(...............| 000047c0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa a0 |................| 000047d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000047e0 00 00 00 00 00 00 00 00 00 00 00 00 01 40 20 00 |.............@ .| 000047f0 00 00 1f f5 55 55 55 55 55 55 55 55 55 55 55 55 |....UUUUUUUUUUUU| 00004800 55 55 55 55 55 55 55 55 55 55 55 55 55 64 ab aa |UUUUUUUUUUUUUd..| 00004810 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004820 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa 80 |................| 00004830 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004840 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004850 00 00 7f d5 55 55 55 55 55 55 55 55 55 55 55 55 |....UUUUUUUUUUUU| 00004860 55 55 55 55 55 55 55 6e aa aa aa aa aa aa aa aa |UUUUUUUn........| 00004870 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 00004880 aa aa aa aa aa aa aa aa aa aa aa a8 ab b3 54 00 |..............T.| 00004890 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000048a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000048b0 00 03 fe aa aa aa aa aa aa aa aa aa aa aa aa aa |................| 000048c0 aa aa aa aa aa aa a8 5d 15 55 55 55 55 55 55 55 |.......].UUUUUUU| 000048d0 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 |UUUUUUUUUUUUUUUU| 000048e0 55 55 55 55 55 55 55 55 55 55 41 56 b6 aa a0 00 |UUUUUUUUUUAV....| 000048f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00004900 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
我手动获取了此输出文件,因此它与输入对齐。因此,在这里我看到两个问题(我相信有一个原因):
显而易见的原因是,接收方获得的比特数与发送方发送的比特数不同,但我怀疑到底是什么导致了这种行为?我该如何调试以找出问题所在?
关于安装程序的几句话:我使用3个板卡,1个USRP B210、1个Limesdr-USB和1个Limesdr-Mini。我至少以4种不同的组合尝试了该实验,包括从木板发送到自身,并且每次都收到相同的结果。这两块板似乎还不错,它们成功地接收了fm广播并通过fm相互发送/接收声音。
谢谢!
我正在尝试实施一种非常简单的方案,以将数据从一个sdr板传输到另一个。我使用的是GnuRadio 3.7.14,我在随播文件中的方案看起来像这个源文件是96字节的二进制文件...
实际上,我发现了类似的问题,那里给出的食谱也对我有效。GFSK demodulation with Xlating filter in GNU Radio