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Millimeter wave multi-radar testbed
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Journal Title
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Volume Title
Sähkötekniikan korkeakoulu |
Master's thesis
Electronic archive copy is available via Aalto Thesis Database.
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Major/Subject
Mcode
ELEC−3029
Language
en
Pages
61 + 9
Series
Abstract
The research in the 5G network and millimeter-wave technology deployment for automotive and industrial applications has rapidly increased due to the large scale availability of compact high-resolution single-chip radar solutions. In this thesis, multiple radar sensor modules are utilized for generating the raw ADC data. This thesis work develops an application to acquire the captured data utilizing the automotive and industrial millimeter-wave sensing evaluation modules.
The radar sensors operating at millimeter-wave frequency spectrum comprises of the Digital Signal Processor (DSP) and hardware accelerator (HWA) to perform real-time signal processing algorithm and stream the processed output of detected object. However, the thesis aims to stream the raw ADC data output and perform the Fast Fourier Transform (FFT) computations without the utilization of DSP or HWA for signal processing. The assessment of the captured raw ADC data will be beneficial for developers to modify the design of the digital signal processing chain as per the application requirements.
Initially, the study commences with a detailed description of the FMCW radar theory and signal-processing methods, crucial to understand the functioning of the digital front end of the device and techniques to detect objects. Furthermore, the implementation of raw ADC data transfer from the internal memory of both the sensing modules is executed using the Texas Instruments equipment, software tools and development kit. Hence, the post-processing of the accumulated data is performed to estimate the range and visualize the complex ADC signal and detected objects peaks in the stationary scenario.