The software radio architecture

Advanced Microwave Circuits and Systems

“…The concept of Software-Defined Radio (SDR) in which a common hardware platform is used to cover any communication channel in a wide frequency spectrum with any modulation and bandwidth, supports this trend (Mitola, 1995;Haykin, 2005). In light of the functional flexibility and platform programmability requirements, one of the major challenges of SDR clearly resides in energy consumption.…”

A Pocket Signal Detector with Smart Phone for Panel

“…WLAN/LAN and USB, that is integrated broadband RF signal processing platform and ordinary intelligent mobile terminal with special APP [4], as shown in Figure 1(a). The integrated broadband RF signal processing platform is described in this scheme and display APP will be discussed in the software design part.…”

Oportunidades para la implementación de radio definida por software en redes de sensores

“…Figure 1 shows a functional block diagram of a device implementing SDR functionalities, in which three important sections are shown. The Radio Frequency (RF) section that receives and sends the signal to the medium is essentially composed of the antenna and radio frequency amplifiers; the Intermediate Frequency (IF) section is responsible for changing the domain to the signal, i.e., in the case of a receiver, the signal goes from the analogue to the digital domain, while the operating frequency is taken to an intermediate frequency by means of the Digital Down-Converter (DDC); finally, the baseband section is where the signal is processed to demodulate and decode, and thus extract the information [7,8]. [8,9].…”