准备测试数据源
Option 1: Download or clone the test wave file from github.
git clone https://github.com/aricwang88/hackrf_example_res.git
Option 2: Install ffmpeg or libav-tools to convert the mp3 to wave file.
Search in repository:
apt-cache search libav-tools
libav-tools - Multimedia player, server, encoder and transcoder
apt-get install libav-tools
avconv -i mm_didu.mp3 -acodec pcm_s16le -ac 2 -ar 44100 -vol 200 MM_didu.wav
gcc -o HACKRF_WBFM_Transmit HackRF_WBFM_Transmit.c -lm -lhackrf
make wav
编译出可执行程序 HACKRF_WBFM_Transmit.
chmod +x HACKRF_WBFM_Transmit
./HACKRF_WBFM_Transmit
Usage:./HACKRF_WBFM_Transmit 验证
I also upload the test wave file, please clone from other repository or convert from mp3 by ffmpeg.
./HACKRF_WBFM_Transmit MM_didu.wav
HACKRF WBFM Transmit demo ...
Begin to init hackrf ...
hackrf_init sucessfully!
hackrf_open() success.
Board ID Number: 2 (HackRF One)
Firmware Version: 2015.07.2
HACKRF init done.
Load wav file:MM_didu.wav
(1-4): RIFF
(5-8) Overall size: bytes:32360616, Kb:31602
(9-12) Wave marker: WAVE
(13-16) Fmt marker: fmt
16 0 0 0
(17-20) Length of Fmt header: 16
(21-22) Format type: 1 PCM
(23-24) Channels: 2
(25-28) Sample rate: 44100
(29-32) Byte Rate: 176400 , Bit Rate:1411200
(33-34) Block Alignment: 4
(35-36) Bits per sample: 16
(37-40) Data Marker: data
(41-44) Size of data chunk: 32360580
Number of samples:8090145
Size of each sample:4 bytes
Approx.Duration in seconds=183.450211
Approx.Duration in h:m:s=0:3:3.450
.Valid range for data values : -32768 to 32767
Alloc memory resample done.
Alloc memory IQ data done.
Alloc memory TX data done.
Begin to process data ...(Please wait about 20 seconds.)
Processing: 0.00%
Processing: 5.45%
Processing: 10.90%
Processing: 16.35%
Processing: 21.80%
Processing: 27.26%
Processing: 32.71%
Processing: 38.16%
Processing: 43.61%
Processing: 49.06%
Processing: 54.51%
Processing: 59.96%
Processing: 65.41%
Processing: 70.86%
Processing: 76.32%
Processing: 81.77%
Processing: 87.22%
Processing: 92.67%
Processing: 98.12%
IQ data transcode done.
Release intermedia memory.
Data process done, transmiting ...
Ctrl+C to stop transmiting.
准备测试数据源Option 1: Download or clone the test wave file from github.git clone https://github.com/aricwang88/hackrf_example_res.gitOption 2: Install ffmpeg or libav-tools to convert the mp3 to wave file....
准备工作：
这里使用的设备是
hackrf
，所以需要在kali下
安装
hackrf
的驱动和环境。打开终端，在终端中输入以下命令：
sudo apt-get install
hackrf
lib
hackrf
-dev lib
hackrf
0
安装
完毕之后，插上
hackrf
，运行以...
本文介绍LimeSDR gr-limesdr自带的example中的FM宽带广播
发射
与接收的GRC程序。
调频、宽带调频
WBFM
和窄带调频NBFM的相关基础知识网上有很多，可以参见下边的链接：
https://zh-cn.fmuser.net/content/?801.html
https://zhuanlan.zhihu.c...
用了GNURADIO FM
发射
之后，一直以来想写个
HackRF
Windows下的
发射
机程序，但是苦于对IQ调制的理解一直没有动手，
前端时间在github网站上看到了一份关于
HACKRF
FM的源码（https://github.com/hateonion/
hackrf
Multi
Tran
sfer），于是调试了了发现不能运行，所以重新燃起了我写这个程序的希望。
原作者的源码是基于Footbal
FFTW
( the Faster Fourier
Tran
sform in the West) 是一个快速计算离散傅里叶变换的标准C语言程序集，其由MIT的M.Frigo 和S. Johnson 开发。可计算一维或多维实和复数据以及任意规模的DFT。
一个用C语言编写、支持一维和多维变换、支持任意大小输入、支持实数和复数的数字傅里叶变换软件库
1.从官网（http://
fftw
.org/index.html）【外网，可能要架VPN】下载源码压缩包
fftw
-3.3.8.tar.gz
2. ..
