Counterevasion Studies
Abstract
In Semi-Annual Technical Report No. 2 - Part B, a detailed description of the complex cepstrum was given, and the effect of exponentially weighting the input trace was discussed from a theoretical point of view. The limit of the cepstrum technique as applied to synthetic mixtures of underground nuclear explosions was found to be about 0.5 seconds, and an example of a presumed multiple underground nuclear explosion was analyzed. The purpose of the present report is to develop a more effective form of comb filter for the cepstrum, and to investigate the limit to which the depth phase from underground nuclear explosions can be resolved. A matched waveform filter has been developed to aid in the solution of these problems. Subsection B discusses the theoretical basis for the comb and matched waveform filters. Subsection C is concerned with synthetic mixtures of direct and depth phases from presumed underground nuclear explosions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1974
- Accession Number
- ADA004820
Entities
People
- David Sun
- Stephen S. Lane
Organizations
- Texas Instruments