Development of Satellite Based Sensor for Improved Measurement and Validation of Ionospheric Parameters.

摘要

Having ionospheric electron density distributions as a function of height, latitude, longitude, and time under different conditions is essential for scientific, technical, and operational purposes. A satellite-based, swept-frequency, HF sounder can obtain electron density profiles on a global scale. Under this STTR program we have developed a new-generation HF sounder that employs recent developments in technology, electronics, and processing capabilities. During phase II of the STTR program a laboratory prototype has been developed and tested. The system is ready to be adapted for flightworthy operation. It will provide global-scale electron density distributions, contours of fixed densities, maps of f0F2, hmax, etc. It will allow us to map irregularities, estimate anomalous propagation and conditions for ducting, determine angles of arrival, etc. It will also be able to perform various plasma diagnostics and, because of new flexibility, will be programmable from the ground to perform a variety of experiments in space.