Results 171 to 180 of about 2,419 (211)

Measurement Of Ice and Frost Thickness with an FM-CW Radar

10th European Microwave Conference, 1980, 1980
A mobile instrument for the measurement of ice and frost thickness on lakes and bogs has been developed. It is an FM-CW radar with separate transmitting and receiving antennas operating in the frequency range 1...1.8 GHz. The display of the radar consists of an audio spectrum analyzer with a led matrix of 12 × 32 leds (32 channels indicating different ...
Pekka Jakkula, Pekka Ylinen, Martti Tiuri   +2 more
openaire   +1 more source

A dedicated computer system for FM-CW radar applications

13th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2000. Conference Proceedings (IEEE Cat. No.00EX428), 2002
In this paper, a DSP based computer system for FM-CW radar applications is described. Besides data acquisition and storage, the computer system can be used for front-end data processing and system control. Processing includes filtering and clutter suppression.
S.H. Heijnen, J.S. Van Sinttruijen, W.F. Van der Zwan, L.P. Ligthart   +3 more
openaire   +1 more source

Developing a dual-frequency FM-CW radar to study precipitation

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
Using support from the Cooperative Institute for Research in Environmental Sciences (CIRES) Innovative Research Program, an inexpensive dual-frequency vertically pointing precipitation radar was developed utilizing technologies initially developed for the mobile phone, the police radar, and the video game industries. One radar operated in the frequency
openaire   +1 more source

Detection of objects by synthetic aperture FM‐CW radar

Electronics and Communications in Japan (Part I: Communications), 1992
AbstractThe frequency‐modulated continuous‐wave (FM‐CW) radar is suitable for detecting objects placed in the near range compared to the pulse radars. This paper considers the principle of the synthetic aperture technique for the conventional FM‐CW radar and presents the fundamental detection results of objects placed in the free space.
Yoshio Yamaguchi, Masashi Mitsumoto, Atsushi Kawakami, Masakazu Sengoku, Takeo Abe   +4 more
openaire   +1 more source

Design of an FM-CW radar altimeter

2020
ABSTRACT DESIGN OF AN FM-CW RADAR ALTIMETER Yetkil, Yaşar Barış MS., Department of Electrical and Electronics Engineering Supervisor: Assoc. Prof. Dr. Şimşek Demir Co-Supervisor: Prof. Dr. Yalçın Tanık December 2005, 72 pages Frequency modulated continuous wave (FM-CW) radar altimeters are used in civil and military applications.
openaire   +1 more source

FM-CW radar performance in a lossy layered medium

Journal of Applied Geophysics, 1999
Abstract FM-CW radar is capable of detecting subsurface anomalies by using linear sweep frequency transmission of a periodically repetitive continuous FM signal. Due to the continuous-wave nature, the peak power of the FM-CW radar is usually in the range of hundreds of milliwatts.
Ruili Deng, Ce Liu
openaire   +1 more source

Low cost FM-CW radar range finder

IEE Colloquium on Automotive Radar and Navigation Techniques, 1998
This work is concerned with the use of a 27 GHz triangular FM-CW single antenna radar gun with analogue signal pre-processing together with a Matlab off-line method to extract range information from a static target. The authors conclude that FM-CW radar has the potential of being commercially used as a navigation tool for automotive and autonomous ...
M.R. Jackson, R.M. Parkin, B. Tao
openaire   +1 more source

Inexpensive FM-CW Radar for Boundary-Layer Precipitation Studies

IEEE Geoscience and Remote Sensing Letters, 2011
A vertically pointing C-band (5.8-GHz) frequency-modulated (FM) continuous-wave Doppler radar was developed for less than U.S. $6000, which can estimate the Doppler velocity power spectra from 20 to 300 m above the ground with a 5-m resolution. Three key design elements kept the costs low.
openaire   +1 more source

Performance Prediction Method for a Class of FM-CW Radars

IEEE Transactions on Aerospace, 1963
In this paper the author has used the theory of zero crossings of random processes to analyze the errors due to receiver noise of a triangularly modulated FM-CW Radar. Curves are given that can be used to determine the percentage error in the range measurement as a function of signal-to-noise ratio, provided the shape of the noise spectrum is known ...
openaire   +1 more source

FM-CW laser radar at 10.6 microns

2012
The feasibility of a continuous -wave frequency-modulated radar with a CO- laser as a transmitting source was investigated. A developmental system was constructed and tested and the feasibility of an optical radar utilizing coherent detection at 10.6 microns was demonstrated.
openaire   +1 more source