Luigi Cruz is a computer engineer at the SETI Institute currently working on the GPU-accelerated real-time digital signal processing pipeline deployed at the Allen Telescope Array. He also maintains multiple open-source projects like the PiSDR, an SDR-specialized Raspberry Pi image, CyberEther, a CUDA accelerated signal visualization library, and Radio Core, a Python library for demodulating SDR signals using the GPU with the help of cuSignal and CuPy.
The Allen Telescope Array is a radio interferometer currently composed of 42 antennas. The array is made up of 6.1-meter diameter offset Gregorian telescope elements distributed randomly with a maximum baseline of 300 meters. The recently upgraded cryo-cooled log-periodic antenna feed (known as Antonio Feed) is sensitive to a wide and continuous range of frequencies ranging from 900 MHz to 12 GHz. The BLADE (Breakthrough Listen Accelerated DSP Engine) is a C++20 GPU-based computer software developed in-house to process data produced by the array. It is being used in production at the ATA to combine signals received by individual antennas […]