Method of processing compressed sensing signal and apparatus thereof
AssigneeAgency for Defence Development
InventorsJun Il Ahn, Sung Jin Jo, Chang Hun Lee, Sun Phil Nah
Life of this patent
Estimating the term…
Abstract
A method of processing a signal in a compressive sensing receiver, includes: obtaining a first signal received via an antenna; generating a first baseband signal by mixing the first signal with a second signal generated by a local oscillator based on a pseudo random binary sequence (PRBS); removing a spurious from the first baseband signal based on a pre-stored estimation value obtained by estimating the spurious generated by the local oscillator in advance; and detecting a spectral slice including the first signal based on the first baseband signal from which the spurious is removed and a measurement matrix.
Claims11
A method of processing a signal in a compressive sensing receiver, the method comprising:
- obtaining a first signal received via an antenna;
- generating a first baseband signal by mixing the first signal with a second signal generated by a local oscillator based on a pseudo random binary sequence (PRBS);
- removing a spurious component from the first baseband signal based on a value which is obtained by estimating the spurious component generated by the local oscillator and is stored in advance;
- detecting a spectral slice including the first signal based on the first baseband signal from which the spurious component is removed and a measurement matrix, and
- calibrating the measurement matrix using a calibration signal generated based on a bit pattern length of the pseudo random binary sequence and a reception frequency band.
A compressive sensing receiver of processing a signal, comprising:
- a receiver configured to obtain a first signal received via an antenna;
- a memory storing a spurious component estimation value and a measurement matrix;
- and
- at least one processor configured to perform:
- generating a first baseband signal by mixing the first signal with a second signal generated by a local oscillator based on a pseudo random binary sequence;
- removing a spurious component from the first baseband signal based on the spurious component estimation value which is obtained by estimating the spurious component generated by the local oscillator and is stored in advance;
- detecting a spectral slice including the first signal based on the first baseband signal from which the spurious component is removed and the measurement matrix;
- and calibrating the measurement matrix using a calibration signal generated based on a bit pattern length of the pseudo random binary sequence and a reception frequency band.
A non-transitory computer-readable storage medium storing instructions, wherein when the instructions are performed by at least one of processor included in a compressive sensing receiver, the compressive sensing receiver is caused to execute:
- obtaining a first signal received via an antenna;
- generating a first baseband signal by mixing the first signal with a second signal generated by a local oscillator based on a pseudo random binary sequence (PRBS);
- removing a spurious component from the first baseband signal based on a value which is obtained by estimating the spurious component generated by the local oscillator and is stored in advance;
- detecting a spectral slice including the first signal based on the first baseband signal from which the spurious component is removed and a measurement matrix;
- and
- calibrating the measurement matrix using a calibration signal generated based on a bit pattern length of the pseudo random binary sequence and a reception frequency band.
Dependencies are inferred from the claim text.