2015年11月9日 星期一

無線電 軟體 觀察 工具Gnu Radio RTL SDR HackRF GPS RTL-SDR GSM Network Software defined radio HACKRF BLADERF USRP

Gnuradio logo.svg
Original author(s)Eric Blossom
Developer(s)GNU Project
Tom Rondeau
Johnathan Corgan
Stable release3.7.7.1 (May 15, 2015; 5 months ago[1]) [±]
Development statusActive
Written inC++, Python
Operating systemCross-platform
Available inEnglish
TypeRadio
LicenseGNU General Public License
WebsiteOfficial website

GNU Radio



http://gnuradio.squarespace.com

GNU Radio is a free software development toolkit that provides the signal processing runtime and processing blocks to implement software radios using readily-available, low-cost external RF hardware and commodity processors. It is widely used in hobbyist, academic and commercial environments to support wireless communications research as well as to implement real-world radio systems.





GNU Radio 就是一個開放原始碼的 免費軟體開發者工具 ，  讓你可以用於 即時 訊號 處理 和 區段觀察 ， 使用低成本的無線電硬體，提供信號處理運行和處理模塊使用現成可用的，低成本的外部射頻硬體和商用處理器來實現軟件無線電。它被廣泛應用於業餘玩家，學術和商業環境，以支持無線通信的研究，以及實現真實世界的無線系統。


程式需要 加裝一個 數位接收器的硬體(SDR)，接收到的訊號，你可以觀看即時的變化（依接收器能力），你可以設定某個區段或去下載 通訊協定 設定檔、軟體濾波設定、數位模組、或是協定的工具與插件，

你可以錄製訊號，

另外可以使用工具解析訊號 GRC flowgraph

Narrow Band FM Receiver

This is a simple narrow band FM receiver with two NBFM demodulators to allow switching between 5kHz and 2.5kHz deviation:
  • Enter USRP frequency in a text field
  • Tune within the passband using frequency translating filter (fast tuning)
  • Variable filter width and shape
  • Squelch
  • Supports 5kHz and 2.5kHz deviation
  • Download the GRC file
The video below shows the narrow band FM receiver in action receiving the AO-51 amateur radio satellite using the USRP, WBX and an Arrow antenna.		FM receiver flow graph


AM Receiver

This is a simple AM receiver featuring a variable low pass filter and automatic gain control with fixed rate and levels:
  • Enter USRP frequency in a text field
  • Tune within the passband using frequency translating filter (fast tuning)
  • Variable filter width and shape
  • Automatic gain control
  • Download the GRC file
AM receiver flowgraph

SSB/CW Receiver

This is a simple SSB/CW receiver featuring a tunable band pass filter and automatic gain control with fast/medium/slow rate:
  • Enter USRP frequency in a text field
  • Tune within the passband using frequency translating filter (fast tuning)
  • Variable filter width, offset and shape
  • Sideband is selected using the filter
  • Automatic gain control (fast/medium/slow)
  • Download the GRC file
SSB/CW receiver implemented in GNU Radio Companion
你可以使用低成本的數位電視接收棒

RDS reception using SDR

Radio Data System reception using Software Defined Radio.
I'm returning to SDR investigations. Why - what's new?


Supported hardware

Gqrx uses the gr-osmosdr source block to interface with receiver hardware and supports the following input sources:


osmocom Gnu Radio Blocks

While primarily being developed for the OsmoSDR hardware, this block as well supports:

HOWTO: GSM Base Station with the BeagleBone Black, Debian GNU/Linux and a USRP



RTL SDR
RTL-SDR (RTL2832U) and software defined radio news and projects. Also featuring Airspy, HackRF, FCD and more.

HACKRF VS. BLADERF VS. USRP

THE BIG LIST OF RTL-SDR SUPPORTED SOFTWARE

ROUNDUP OF SOFTWARE DEFINED RADIOS



Welcome to Wikipedia,

List of software-defined radios

Software-defined radio

GNU Radio



Using A RTL-SDR To Learn About The GSM Network Around You, Hak5 1621

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