Now showing items 1-10 of 30
Demand for electricity in Virginia
(MIT Press, 1978)
Economic models for TMDL assessment and implementation
(American Society of Agricultural and Biological Engineers, 2006)
The TMDL assessment and implementation process is designed to achieve designated uses for water bodies, which are set by states based on criteria including perceived costs and benefits. Setting water quality goals based ...
Land and Racial Wealth Inequality
(American Economic Association, 2011)
...Explanations for the persistent and large racial wealth gap largely fall into two categories. First, racially discriminatory policies in credit markets, labor markets, school finance, and other institutions may have ...
Bearing estimation using a large towed array
(Acoustical Society of America, 1975)
When a towed array of hydrophones is significantly nonlinear due to bending, ordinary linear array beamforming gives a biased estimate of the true source bearing. By processing the array as a sequence of smaller aperture ...
Estimating the consumption and investment demands for housing and their effect on housing tenure status
(MIT Press, 1994-02)
Theoretical work suggests that families live in owner-occupied housing if their investment demand for housing exceeds their consumption demand for housing. Using household data from the 1983 Survey of Consumer Finances, ...
Beamforming when the sound velocity is not precisely known
(Acoustical Society of America, 1980-08)
Beamforming is an integral part of most signal processingsystems in active or passive sonars. The delays used to generate a beam are functions of the sound velocity, which depends on temperature, salinity, and pressure. ...
Passive range estimation using subarray parallax
(Acoustical Society of America, 1979-05)
Consider a large aperture linear array which is detecting coherent radiation from a source. Suppose that the array is processed as a string of subarrays consisting of adjacent sensors. Assume that the signal is a plane ...
Bearing estimation using a perturbed linear array
(Acoustical Society of America, 1977-06)
A linear hydrophone array which is towed in the ocean is subject to snakelike bending. If the array is processed as if it was truly linear, the author has shown that the bending causes a deflection of the measured bearing ...
Maximum likelihood estimation of the position of a radiating source in a waveguide
(Acoustical Society of America, 1979-09)
An array of sensors is receiving radiation from a source of interest. The source and the array are in a one-or two-dimensional waveguide. The maximum-likelihood estimators of the coordinates of the source are analysed under ...
Estimating bearing when the source is endfire to an array
(Acoustical Society of America, 1979-03)
Consider the problem of estimating the direction of arrival of a plane wave using a linear array of length L with M sensors. Let 0 denote the direction with respect to the array axis. Assume that we know that 0 >0. The ...