Հրապարակման մանրամասներ:
Ամսագրի կամ հրապարակման վերնագիր:
Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես
Հրապարակման ամսաթիվ:
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Վերնագիր:
Study of Digitally Modulated Radars
Ստեղծողը:
Hovsepyan, L. S. ; Sivolenko, E. R.
Խորագիր:
Չվերահսկվող բանալի բառեր:
Digitally Modulated Radar (DMR) ; Frequency Modulated Continuous Wave (FMCW) ; Radar Sensing
Ծածկույթ:
Ամփոփում:
State-of-the-art automotive radars use multi-chip Frequency Modulated Continuous Wave (FMCW) radars to sense the environment around the car. FMCW radars are prone to interference as they operate over a narrow baseband bandwidth and use similar radio frequency (RF) chirps among them. Phase Modulated Continuous Wave radars (PMCW) are robust and insensitive to interference as they transmit signals over a wider bandwidth using the spread spectrum technique. As more cars are equipped with FMCW radars that illuminate the same environment, interference would soon become a serious issue. PMCW radars can be an effective solution to interference in the noisy FMCW radar environment. PMCW radars can be implemented in silicon as a System-on-a-chip (SoC), suitable for Multiple-Input-Multiple-Output (MIMO) implementation, and are highly programmable. PMCW radars do not require highly linear high-frequency chirping oscillators, thus reducing the size of the final solution. This article outlines the theoretical underpinnings and experimental implementation of DMR systems using Universal Software Radio Peripheral (USRP) devices, including waveform generation, signal processing, and performance evaluation. Practical insights into automotive, industrial, and aerospace applications are also explored, showcasing DMR's pivotal role in next-generation sensing technologies.