Dr. Yi Yao Profile

Dr. Yi Yao

at SRI International

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 27 May 2022 Poster + Paper

Time-space processing for small ship detection in SAR

Evan Frenklak, Yi Yao, Nhon Trinh, Keith Kastella

Proceedings Volume 12108, 121080W (2022) https://doi.org/10.1117/12.2632000

KEYWORDS: Synthetic aperture radar, Target detection, Motion models, 3D image processing, Radar, Detection and tracking algorithms

Read Abstract +

This paper presents a new 3D time-space detector for small ships in single look complex (SLC) synthetic aperture radar (SAR) imagery, optimized for small targets around 5-15 m long that are unfocused due to target motion induced by ocean surface waves. Imagery is decomposed into subapertures to form a time sequence of images and the 3D power spectral density (PSD) is evaluated. Within the PSD, the response due to wave clutter is concentrated near low frequency and wavenumber relative to the target response. The clutter spectrum is estimated from collected training data and used to whiten data for cells under test (CUT). The time-space extent of the target PSD is estimated using a generic small target point-scattering model obtained from simulated data using a computer-aided design (CAD) model of a 10 m target under moderate surface conditions that is noncoherently averaged over target heading and speed. The target PSD estimate is used as a template and applied to the whitened, magnitude-detected CUT, forming a test statistic. Experiments on RADARSAT2 data demonstrate improvement over a simple power detector of 2-6 dB that is robust to both clutter and target conditions.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years