HDTV Forum ? Deep Analysis of cell phone jammer

Such as the use of broadband through the programmable digital filter for the ADC channel separation; using digital signal processor (DSP) technology, software programming to implement a variety of communication band selection, such as HF, VHF, UHF and SHF, etc.; by software programming transmit information to complete the sampling, quantization, encoding / decoding, processing and conversion operations, in order to achieve the RF radio transceiver functions; by software programming channel modulation of different options, such as AM, FM, SSB, data, frequency hopping and spread spectrum, etc.; by software programming of different security architecture, network protocols and control terminal functions. Software radio technology is software based, compute-intensive operations in the form. The detecting network can be formed in the area to be shielded through the specific network mode of cell phone jammer?intelligent management system.
DSP technology is the basis for software radio handsets. Despite the current low-power DSP, the rapid development of powerful DSP capabilities, but DSP in speed, power consumption is still on the constraints of the status of software radio development. The study is another DSP software, the software is the core of the software radio technology. In the current design of software radio DSP can not meet the requirements of the case, the development of DSP digital signal processing software should be the main direction of the software radio technology. The management mode of detecting of detector, positioning, shielding ofcell phone jammer and alarming can be formed.
This includes a variety of FFT algorithm, modulation and demodulation, source coding, signal coding and other communications software, including control of the signal control and data exchange software. Software radio technology widely used in radio communications, software radio technology was first born in military applications, due to its excellent features, the software radio technology will soon penetrate into civilian areas of wireless mobile communications, especially in the eve of the first commercial is about to third-generation mobile communications applications. mobile phone jammer?intelligent management system can eliminate the negative effects caused by the mobile phone.
As the software radio technology can digitize the analog signal of the process as much as possible close to the antenna, is about as close to the AD converter front-end RF radio frequency, the use of DSP processing power and software flexibility to achieve the separation channel, modulation and demodulation, channel coding decoding etc., which for the second-generation mobile communications systems to third generation mobile communication systems provide a good smooth transition seamless solution. Software radio technology as well as in the field of satellite communications applications, especially those who are rising modern small satellite applications. cell phone jammer intelligent management system can perform function of safety and protection.
In China, the software radio technology subject to considerable attention in ?95? and ?15? pre-research project and the ?863? program will focus on software radio technology as a research project. ?95? during the project?s ?multi-band multi-radio technology,? broke some of the key software radio technology to develop a prototype 4-channel multi-waveform; China?s third generation mobile communication system program TD-SCDMA, is the use of software radio technology complete the design. Software radio needs to be modern and advanced communication technology, microelectronics and computer technology combined with a long-term research projects that require a strong comprehensive strength. cellular phone jammercan make sure that environment can be purified and secrecy leaking and crimes can be prevented.

Source: http://www.hdtv-info.org/2011/09/23/deep-analysis-of-cell-phone-jammer/

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