FMCW Radio Altimeter Prototype – Prototype development Power Spectral Density of radar model Power Spectral Density digital-to-analog converter filter before modulation PCB Design of 24GHz version measure range: 0.5 m – 150 m 3D field of radar antenna (4.3 GHz version) Far field of the radar antenna from simulation Radio altimeter – antenna (4.2 – 4.4 GHz) antenna diagram with radiation pattern (90°) antenna diagram with radiation pattern (0°) ARINC 429 Transmitter Module Functional HDL-Simulation for FPGA ARINC 429 simulation result ARINC 429 – Simulation of the analog circuit (Line Driver) High Speed Mode (Bitrate: 100 kbps) according to specification Microcontroller-unit with interfaces ARINC 429, RS485, RS232, SPI, Analog Das könnte dir auch gefallen Legal position for the use of radio altimeters Methods of height measurement above ground level Aircraft Radio Altimeter (4.3 GHz)