Digital processor breadboard for RFI detection and mitigation in spaceborne radiometers

Abstract

The increasing problem with Radio Frequency Interference (RFI) in protected radiometer frequency bands has inspired the development and implementation of methods for detecting RFI. With increasing demands for next generation spaceborne radiometers, it becomes necessary to include RFI detection in such systems. Since input to these methods require much more data than traditional radiometer data, and since the downlink capacity for spaceborne systems are limited, RFI detection and mitigation must be implemented on-board thereby maintaining the low downlink data rate. The development of such a system is described in this paper.

Future spaceborne ocean missions using high sensitivity multiple-beam radiometers

“…In the systems studied here, several algorithms: anomalous amplitude, kurtosis, polarimetry, and frequency domain detection will be employed. Based on a representative case study of such a processor [6] the power consumption can be estimated to be 0.14 W per receiver on average. In summary, the power estimate is: 1 + 0.24 + 0.14 = 1.38 W per receiver, using present state-of-the-art components.…”