Optoelectronic Device for Measuring Radio Signal Samples and Evaluating Its Accuracy Characteristics
نویسندگان
چکیده
When using quadrature signals in radio channels, flat and selective fading, multipath reception, intersymbol interference, jitter occur. In addition to the need accurately estimate value of phase difference at current previous clock intervals, a critical factor receiving demodulating such is accuracy measuring amplitude their samples. signals, an approach possible, basis which measure values individual signal samples discrete time points with higher than existing electronic devices. Such can be implemented by optoelectronic device coherent luminous flux formed, parameters are modulated voltage proportional readings received signal. Using light flux, interferogram directly related this accordingly This makes it increasing estimating samples, increase base alphabet used for code manipulation, efficiency allocated frequency band transmitting information reduce probability bit error. The article presents mathematical model converting into generated interferogram. By modeling characteristics were evaluated. results illustrating relationship optical elements estimates counts presented. practical significance proposed as independent analog-to-digital conversion well part demodulators QAM OFDM networks communication systems 5G next generations.
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ژورنال
عنوان ژورنال: Eng
سال: 2023
ISSN: ['2673-4117']
DOI: https://doi.org/10.3390/eng4010016