Signal modulation system measuring device
نویسندگان
چکیده
Abstract The design can measure and display other parameters such as the modulation system of measured signal output by source, identify mode signal, demodulation signal. measurement module is composed an automatic gain amplifier circuit, a broadband amplifier, low-pass filter DDS generation amplification circuit. working principle measuring device that demodulated AM obtained after spectrum transmitted multiplier, high-frequency filtered out amplified fixed amplifier. After waveform sampled onboard ADC MSP432E401Y, then fast Fourier transform performed to obtain various parameters, which are finally displayed on serial screen.
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2022
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2395/1/012034