Accession Number:
ADA250589
Title:
Implementation of a MMW FM-CW Radar System for Study of Surface Scattering from Freshwater Lake and River Ice Sheets
Descriptive Note:
Final rept.
Corporate Author:
DARTMOUGH COLLEGE HANOVER NH THAYER SCHOOL OF ENGINEERING
Personal Author(s):
Report Date:
1991-12-15
Pagination or Media Count:
25.0
Abstract:
A field-hardened, high-resolution, broadband millimeter wave 26.5 to 40 GHz Frequency Modulated-Continuous Wave FM-CW radar employing real-time data acquisition and digital signal processing DSP techniques has been implemented for continuously acquiring and processing data for ice thickness profiling and studying surface scattering from freshwater lake and river ice sheets. Thickness resolution is better than 3 cm andor - 10. System specifications include a 15 dBm output rf power level, a 0.066 second sweep rate and 50 dB signal-to-noise ratio SNR. This radar is capable of operation from ground-mobile platforms and helicopters at heights of up to 7 m above ice surfaces at speeds up to 40 kph. Initial laboratory tests of the system have exhibited results that meet or exceed original design specifications.
Descriptors:
- *CONTINUOUS WAVE RADAR
- *ICE
- *SIGNAL PROCESSING
- BROADBAND
- DATA ACQUISITION
- FREQUENCY
- HELICOPTERS
- HIGH RESOLUTION
- LABORATORY TESTS
- LAKES
- MILLIMETER WAVES
- NOISE
- OPERATION
- PLATFORMS
- POWER
- POWER LEVELS
- PROCESSING
- RADAR
- RATES
- REAL TIME
- RESOLUTION
- RIVERS
- SCATTERING
- SPECIFICATIONS
- SURFACES
- TEST AND EVALUATION
- THICKNESS
- TIME
Subject Categories:
- Active and Passive Radar Detection and Equipment