Frequency spectrum regeneration method, receiver and reception method
Real-time monitoring of several different frequency bands
Summary
In recent years, with the diffusion of the wireless Internet of Things
(IoT), interference between different IoT systems are reported. In
order to avoid those interferences, real-time frequency detection
techniques are used to monitor signals and noise in the IoT
frequency band in milliseconds level. However, monitoring these
bands in real time all at once using Nyquist sampling is not easy
because the high-speed analog-to-digital converter (ADC) that
exceeds 12 Ghz is necessary.
This invention made possible to monitor in real-time several
different frequency bands with a real-time frequency monitor using
an undersampling reception method by following steps: the step of
obtaining a frequency spectrum from 0 to the Nyquist frequency,
the step of generating a frequency spectrum by reversing the data
at each Nyquist frequency, and the step of performing a minimum
value calculation on each of the obtained above data to generate a
single frequency spectrum which reproduces the received
frequency spectrum.
Example
Application
Spectrum analyser, etc.
IP Data
IP No. : 2020-106478
Inventor : SUEMATSU Noriharu, FURUICHI
keyword : Electronics, Hardware