GNU Radio 是免费开源的软件开发工具套件。它提供信号运行和处理的模块，用它可以在唾手可得的低成本的外部射频（RF）硬件和通用微处理器上实现软件定义无线电、或无硬件的模拟环境。这套套件广泛用于业余爱好者，学术机构和商业机构用来研究和构建无线通信系统。 -GNU Radio is a free, open source software development tool suite. It provides a signal operation and processing module, it can be in the fingertips of the cost of the external radio frequency (RF) hardware and general purpose microprocessor to implement software-defined radio, or no hardware in a simulated environment. This set of kit widely used in amateur, academic institutions and commercial organizations to research and build a wireless communication system.