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单词 Software radio
释义

Software radio

中文百科

软件无线电 Software-defined radio

(重定向自Software radio)

软件无线电Software Defined RadioSDR)是一种实现无线通信的新概念和体制。一开始应用在军事领域,在21世纪初,由于众多公司的努力,使得它已从军事领域转向民用领域,成为经济的、应用广泛的、全球通信的第三代移动通信系统的战略基础。

英语百科

Software-defined radio 软件无线电

(重定向自Software radio)
Software Defined Radio concept
Microtelecom Perseus - a HF SDR for the amateur radio market
Internals of a low-cost DVB-T USB dongle that uses Realtek RTL2832U (square IC on the right) as the controller and Rafael Micro R820T (square IC on the left) as the tuner.

Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system. While the concept of SDR is not new, the rapidly evolving capabilities of digital electronics render practical many processes which used to be only theoretically possible.

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