1、购买Ettus N210，LFTX子板，LFRX子板(对于本用途似乎用不到，不过也可以用来验证试验结果)

2、安装Matlab支持的Packages：

http://www.mathworks.cn/hardware-support/usrp.html;jsessionid=168eb607c276c81a6d3d04b34180

下载usrpradio.zip后解压，

在Matlab里浏览到这个文件：usrpradio.mlpkginstall

双击弹出安装界面

需要Matlab的账号，去官网注册一个

在向导里执行安装。

【PS】这里如果我下载了安装文件后，是否能够在不联网的情况下安装usrp组件呢？？哪位试验过？

完成后在matlab里执行 >> help sdru 会有很多提示

>> help sdru

Communications System Toolbox Support Package for USRP(R) Radio

Introduction

Setting Up USRP         - Configure host computer for USRP(R) Radio

Using USRP              - Use blocks and System objects to communicate with USRP(R) Radio

Improving Performance   - Tips to maximize performance

Targeting USRP          - Generate code for FPGA in USRP(R) N210 hardware

Help and Examples       - Links to documentation and examples

Functions

compilesdru             - Compile a function for stand-alone use with USRP(R) Radio

findsdru                - Find USRP(R) radios connected to host computer and report status

getSDRuDriverVersion    - UHD(R) driver version on the host computer

probesdru               - Detailed USRP(R) radio information

setsdruip               - Set USRP(R) radio IP address

setupsdru               - Initialize environment to use USRP(R) Radio software

setuptargetsdru         - Download the FPGA interface code for targeting FPGA in USRP(R) Radio

System Objects

comm.SDRuTransmitter    - Send data to the USRP(R) Radio

comm.SDRuReceiver       - Receive data from the USRP(R) Radio

Blocks

sdrulib                 - Open the block library for USRP(R) Radio

USRP and UHD are trademarks of National Instruments Corp.

3、将N210与电脑连到一个LAN里，电脑配IP：192.168.10.1

N210默认IP: 192.168.10.2

连好后ping下保证联通

4、在matlab里执行 findsdru

正常显示：

ans =

IPAddress: '192.168.10.2'

Status: 'Success'

如果显示 状态失败，则到这里来找原因：

Troubleshooting Communications System Toolbox Support Package for USRP® Radio Connection Issues Ping command times out findsdru function returns an empty IPAddress Firmware for USRP® radio is incompatible with host build USRP® radio is busy USRP® radio is not responding MTU is larger than the FastSendDatagramThreshold Did not receive expected number of samples in burst reception Buffer could not be resized UHDTM driver cannot set thread priorities Unicode conversion error findsdru crashes or throws Invalid MEX-file error Performance Issues Getting Overruns or Underruns 我的设备就出现了“Firmware for USRP® radio is incompatible with host build”问题，按照上面的解决方法，刷新了N210的固件就解决了