Randal J. Miller

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The purpose of this paper is to develop an experimentally-based rear end collision warning algorithm for the situation where two vehicles are initially traveling at the same speed in the same direction when the lead vehicle begins to brake. The full variety of initial conditions of vehicular motion are analyzed to determine the proper collision warning(More)
Above-band-gap picosecond pulses are used to generate holographically high-frequency, coherent, surface acoustic modes on semiconductor surfaces. Optical diffraction from the surface acoustics is in superposition to a free-carrier phase grating that acts as an amplifying cross term in the diffraction process. The detection limits are of the order of 10(-4)(More)
A continuously pumped Nd:YLF regenerative amplifier has been developed that can amplify 40-psec pulses at a repetition rate of greater than 10 kHz, with an average power in excess of 5 W. Pulse energies are as high as 2.0 mJ at 3 kHz and 640 microJ at 10.5 kHz. The limitation on the amplifier repetition rate that is associated with piezoelectric ringing in(More)
In this paper, we will discuss results obtained under contract to the Air Force Weapons Laboratory (AFWL) in a program to develop a laboratory test method for cable Systems Generated Electromagnetic Pulse (SGEMP) measurement. The rationale for this-program has been discussed in our previous publications,1'2 and so will not be given in any detail here. The(More)
A stable, closely-controlled, high-intensity, single-bunch beam will be required for the SLAC Linear Collider. The characteristics of shortpulse, low-intensity beams in the SLAC linac have been studied. A new, high-intensity thermionic gun, subharmonic buncher and S-band buncherl accelerator section were installed recently at SLAC. With these components, up(More)
This paper gives a brief account of a way of recognising aircraft using radar range profiles which does not need large numbers of radar measurements of the aircraft of interest beforehand The method is based on constructing backscatter models of the aircraft by identifying regions of high backscatter using drawings, photographs and commercially available(More)
The chemiluminescence reaction involving pyrogallol in alkaline hydrogen peroxide solution is described. With reaction conditions selected for the determination of Co(II), the detection limit for Co(II) was at least two orders of magnitude below the detection limit of all other species tested. The results suggest that Ca, Mg, Mn, and Fe are the most likely(More)