Chirp Corp.

8248 Sugarman Drive
La Jolla, CA 92037
2 Employees

SBIR Award Summary

Total Number of Awards 22
Total Value of Awards $5.64MM
First Award Date 01/01/87
Most Recent Award Date 12/03/08

Key Personnel

Last Name Name Awards Contact
Altes Dr. Richard Altes 19 Message
Atles Dr. Richard A Atles 3

22 Awards Won

Phase 2 SBIR

Agency: Navy
Topic: N07-008
Budget: 12/03/08 - 12/03/10

Spatially distributed features on a radar range-azimuth display may indicate the presence of an object of interest. The proposed work involves robust detection of such features, including reliable discrimination from environmental features that occur in the absence of the object. In addition to information about the presence or absence of an o...

Phase 2 SBIR

Agency: Navy
Topic: N04-207
Budget: 05/29/07 - 03/11/10

Objectives are to increase robustness in mine detection/classification against significant amounts of clutter, with probability of a correct decision vs. false alarm rate sufficiently good to be implemented in third generation search, classify and map UUV (unmanned underwater vehicle) systems. Echoes and images are used to enhance displays for ...

Phase 1 SBIR

Agency: Navy
Topic: N07-008
Budget: 04/05/07 - 10/05/07

Ambiguity function analysis of a new design concept for side-looking synthetic aperture radar (SAR) indicates that range-rate resolution can be improved by at least a factor of ten while removing range-rate/azimuth ambiguities, and that azimuth-rate resolution can be improved by at least a factor of five. The proposed work is (1) to further ver...

Phase 2 STTR

Institution: University of Rochester

Agency: Navy
Topic: N04-T007
Budget: 11/10/05 - 05/10/07

The problem is to improve airborne maritime radar detection of small moving targets in clutter, where the clutter varies with time, range, azimuth, sea state, grazing angle, wind speed, and the look direction of the radar relative to the wind direction. A new version of space-time adaptive processing (STAP) is applied to the problem. The new t...

Phase 1 SBIR

Agency: Navy
Topic: N04-207
Budget: 01/14/05 - 07/13/05

Multi-aspect sonar echoes can be classified using features extracted from synthetic aperture images (image-based features) and features extracted directly from sonar echoes (acoustic features). Both feature sets are improved by interference rejection techniques that are specifically designed to remove snapping shrimp sounds and by identificatio...

Phase 1 STTR

Institution: University of Rochester

Agency: Navy
Topic: N04-T007
Budget: 07/01/04 - 04/30/05

Energy-on-target is maximized in optics and ocean acoustics by transmitting a time-reversed (spectral phase conjugated) version of received data at each array element or subarray. This process uses an unknown propagation channel as its own space-time matched filter to implement a RAKE receiver at the target location. (A RAKE receiver passes da...

Phase 1 SBIR

Agency: Navy
Topic: N04-072
Budget: 04/21/04 - 10/21/04

New techniques are proposed for clutter and multipath suppression, reliable adaptive detection/classification, and beam forming. Generalized (multivariate) prediction-subtraction is proposed for clutter reduction. Innovative blind deconvolution algorithms are proposed for multipath suppression. Adaptive maximum likelihood beam forming, beam d...

Phase 2 SBIR

Agency: Defense Advanced Research Projects Agency
Topic: SB991-003
Budget: 06/05/00 - 09/30/02

In Phase I, a simple, robust technique for 3D acoustic imaging was implemented with a biologically-inspired synthetic aperture sonar (BioSAS TM), and new features for rotation-invariant, single-echo target classification were obtained. Some of these features were estimated invariant, single-echo target classification were obtained. Some of the...

Phase 1 SBIR

Agency: Defense Advanced Research Projects Agency
Topic: SB991-003
Budget: 04/09/99 - 12/10/99

Chirp Corporation's biomimetic SAS software detects and classifies buried mines by using clutter feature images. A weakly reflecting target appears as a distinctively shaped hole in surrounding volume clutter. Chirp's rotation-invariant target classifier uses dolphin-like signals for mine discrimination. Mines are also discriminated from othe...

Phase 2 SBIR

Agency: Defense Advanced Research Projects Agency
Topic: ARPA93-052
Budget: 04/24/97 - 05/27/99

The objective is to design software tools for recommending efficacious medical protocols, derived from the information contained in a patient database. The approach combines software algorithms for diagnosis, protocol selection, and assessment of patient progress. The diagnostic software uses Bayesian updating of diagnosis probabilities with c...

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