Accession Number:

ADA061327

Title:

MTI Followed by Incoherent Integration-An Exact Analysis.

Descriptive Note:

Technical rept.,

Corporate Author:

NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Personal Author(s):

• Dillard,G. M.
• Klamer,D. M.
• Rickard,J. T.

Report Date:

1978-09-14

Pagination or Media Count:

33.0

Abstract:

Provides an exact computational method and the associated theory for determining the detection threshold to be used when a square-law integrator is applied to the output from a nonrecursive MTI. Using this method, a table of bias levels is computed for a two-pulse single-delay MTI for several values of the number N of pulses integrated and the probability PFA of a false alarm. Derives the characteristic function of the output of the square-law integrator when the MTI input contains a signal with Doppler frequency f sub d and amplitude G. Gives the general theory for obtaining the characteristic function of the sum of squared magnitudes of correlated, circular-Gaussian random variables. Discusses in detail the application of the general theory to the computation of bias levels for a nonrecursive MTI. Briefly considers applications to signal detection based on incoherent integration of overlapping discrete Fourier transforms. Author

Descriptors:

• *DISPLAY SYSTEMS
• *MOVING TARGET INDICATORS
• ALGORITHMS
• FOURIER TRANSFORMATION
• COMPUTATIONS
• DETECTION
• THRESHOLD EFFECTS
• RANDOM VARIABLES
• NUMERICAL INTEGRATION
• RECURSIVE FUNCTIONS
• CORRELATION TECHNIQUES
• DOPPLER EFFECT
• GAUSSIAN QUADRATURE

Subject Categories:

• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE