Signal enhancement for planetary radar sounders

Abstract

Orbital radar sounders are a useful tool to investigate planetary bodies. The sounding signal lies in the high frequency or very high frequency band, allowing a good ground penetration but limiting the system's resolution. Moreover, electromagnetic interference (EMI) may affect the system, increasing the noise in the radar products. In this Letter, a method to enhance the resolution and to suppress the EMI is presented. The method's performance and the parameters setting are investigated. Finally, some results for the Mars Advanced Radar for Subsurface and Ionosphere Sounding and for the Shallow Radar sounders are presented.

Processing Technology Based on Radar Signal Design and Classification

“…Radar is an electronic system with the advantages of low cost, low-power consumption, and high precision [1], which can be significantly applied in space shuttle topographic missions [2,3], optics [4], geotechnical mapping [5], meteorological detection [6], and railway ballast evaluation [7]. With the continuous progress of technology [8,9] and the demand of utilization [10,11], radar has gradually changed from obtaining the distance [12], azimuth [13], and altitude information [14,15] from the target to the launching point of electromagnetic wave to gaining more expanded information [16,17], such as hand-gesture recognition [18], displacement field of the Landers earthquake mapped, and detecting pedestrians with multiple-input multiple-output (MIMO) [19,20].…”

PyBWE: Python tools for Bandwidth Extrapolation of planetary radar signals

“…Also, the BWE can be used to fill a gap between two spectra of multiband radars (Moore et al, 1997), or for Electromagnetic Interference (EMI) removal (Piazzo et al, 2019). This process is known as Bandwidth Interpolation (BWI).…”