Title :
Spread ambiguity functions
Author :
Soliman, Samir S. ; Scholtz, Robert A.
Author_Institution :
Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA
fDate :
3/1/1988 12:00:00 AM
Abstract :
A generalized spread ambiguity function is defined, and its relationship to P.M. Woodward´s (1953) ambiguity function for different models is developed. A derivation and discussion of the properties of the spread ambiguity function are presented. It is shown that smoothing the ambiguity function by the scattering function of the channel does not alter the properties of the ambiguity function. Measures of RMS correlation time and RMS correlation bandwidth of nonstationary processes are defined. An example is given to demonstrate how spread ambiguity functions can be used to help in signal design when dealing with doubly spread targets
Keywords :
information theory; radar theory; RMS correlation bandwidth; RMS correlation time; information theory; nonstationary processes; radar; scattering function; signal design; spread ambiguity function; Autocorrelation; Delay estimation; Mean square error methods; Narrowband; Parameter estimation; Radar detection; Radar theory; Signal resolution; Signal to noise ratio; Testing;
Journal_Title :
Information Theory, IEEE Transactions on
