Laser-induced fluorescence (LIF) is a promising technique for laser radar applications.
Laser radar using LIF has already been applied to algae blooms and oil slicks. Laser radar using LIF has great potential for remote chemical analysis because LIF spectra are extremely sensitive to chemical composition. Multicomponent analysis of laser radar returns from mixtures is often difficult because LIF spectra from solids and liquids are very broad and devoid of line structure.
Therefore, algorithms for interpreting LIF spectra from soldering pots laser radar returns must be able to analyze spectra that overlap in multicomponent systems.
Laser radar usually uses pulsed lasers for ranging purposes, which are suitable for measuring temporal profiles. Laser radar targets are hard instead of diffuse; that is, a definite surface emits the fluorescence instead of an extended volume. Therefore, temporal profiles can be used instead of excitation spectra in FARA analysis of laser radar returns.
The resulting laser radar returns would be ETM instead of EEM. It was analyzed the problems of the laser radar imaging system which need to solve in experiments and models. In this paper, we present results of a study of segmentation by means of cooperative fusion of registered tronex range and intensity images acquired using a prototype amplitude-modulated CW laser radar.
The objectives of this project were to investigate the nature of radar echoes from the fireball produced by atomic detonations, and to determine the feasibility of finding ground zero, height-of-burst, and yield by means of radar echoes.
Metal spheres of different diameters, fastened to the bottom of the balloon at defined distances, corresponding to the radar cross sections of song birds, were moved in all three dimensions of the air space. A comprehensive and fairly self-contained study of centrally obscured optical transmitting and receiving antennas is presented and is intended for use by the laser radar and communication systems designer.
The transmitter calculations, resulting in near and far field antenna gain patterns, assumes the antenna is illuminated by a laser operating in the fundamental cavity mode. A real-time optoelectronic measurement system is proposed to measure the wavefront distortions of scanning beams of a phased-array laser radar.
The experimental results show that this optoelectromic measurement system can measure laser wavefront distortion of a phased-array laser radar in accuracy and in real time. The requirements for a tuned laser radar capable of detecting and ranging a high altitude barium ion cloud release are discussed.
The Santa Barbara Research Center has developed a hakkko soldering station variety of high speed HgCdTe photodetectors for use in CO2 laser radar systems.
The formalism for computing the signal-to-noise ratio (SNR) for laser radar is reviewed and applied to the tasks of target detection, direction-finding, and phase change estimation with squeezed light.
We argue that this capability can be achieved only by coherent laser radar systems that transmit energetic (>1mJ) pulses. We describe such a system and describe single-pulse measurement of the range-resolved line-of-sight velocities, and show that the instrument-limited reproducibility of the measurements is 0.4ms-1.
The system is designed to estimate a complete lidar spectrum in real time, record the data from two lidars, and monitor variables related to the lidar operating environment. The performance of a Coherent Laser Radar is determined by the statistics of the coherent Doppler signal.
For space based applications, a biased estimate of heterodyne efficiency is proposed that removes the variability due to the random surface return but retains the sensitivity to misalignment.