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Seema Sud Phones & Addresses

  • 11140 Harbor Ct, Reston, VA 20191
  • 11140 Harbor Ct APT 1140, Reston, VA 20191
  • Ashton, MD

Skills

Product Strategy • Product Management • Product Requirements • Product Design • Web Applications • Mobile Phone Apps • Competitive Analysis • KPI Dashboards • User Experience • Agile Methodologies • Scrum • Internet • User Research • User-centered Design • Mobile Internet • iOS • Android

Emails

s***d@gmu.edu

Industries

Internet

Resumes

Resumes

Seema Sud Photo 1

Experienced Web And Mobile Product Management Professional

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Location:
Cupertino, California
Industry:
Internet
Skills:
Product Strategy
Product Management
Product Requirements
Product Design
Web Applications
Mobile Phone Apps
Competitive Analysis
KPI Dashboards
User Experience
Agile Methodologies
Scrum
Internet
User Research
User-centered Design
Mobile Internet
iOS
Android

Publications

Us Patents

Bit Detection Using Code Spectrum Transform Techniques For Interference Cancellation

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US Patent:
7480493, Jan 20, 2009
Filed:
Oct 29, 2004
Appl. No.:
10/976032
Inventors:
Seema Sud - Reston VA, US
Assignee:
ITT Manufacturing Enterprises, Inc. - Wilmington DE
International Classification:
H04B 1/02
US Classification:
455104, 455135, 455134, 455112, 455123, 455103, 370329, 370328, 370320, 370322
Abstract:
Spreading code detection methods applying autoregressive spectrum estimation (ARSE) techniques to code division multiple access (CDMA) wireless communication systems allowing the subscriber device to estimate the other users' codes. According to one aspect, ARSE techniques are provided using an augmented Wiener-Hopf solution on a received forward link CDMA signal. The ARSE techniques produce a code spectrum transform yielding a power spectral density versus spreading code index relationship from which the spreading codes in the received forward link signal may be identified. According to another aspect, a reduced rank auto-regression (AR) implementation is provided to produce a code spectrum transform efficiently with improved false code detection rate. With knowledge of other users' spreading codes, interference cancellation can be performed on the forward link of CDMA systems.

Adaptive Filtering In The Presence Of Multipath

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US Patent:
20040151266, Aug 5, 2004
Filed:
Oct 22, 2003
Appl. No.:
10/689765
Inventors:
Seema Sud - Reston VA, US
Wilbur Myrick - South Riding VA, US
International Classification:
H04B007/216
H04B001/10
US Classification:
375/350000, 370/335000
Abstract:
Adaptively analyzing an observed signal to estimate that part of the signal that best corresponds to a steering vector. Modifying the steering vector by convolution of the steering vector with a vector estimating the effect of multipath on the observed signal.

Waveform Analysis And Vulnerability Assessment (Wave) Tool

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US Patent:
20220358374, Nov 10, 2022
Filed:
Apr 29, 2021
Appl. No.:
17/244197
Inventors:
- El Segundo CA, US
Seema SUD - Reston VA, US
Assignee:
The Aerospace Corporation - El Segundo CA
International Classification:
G06N 5/04
G06F 17/14
G06N 20/00
Abstract:
A waveform analysis and vulnerability assessment (WAVE) tool is disclosed that can analyze the characteristics and vulnerabilities of waveforms. The WAVE tool may identify issues in waveforms prior to their implementation in a transmit device or building the back-end processing to receive the waveform at a ground station. The WAVE tool may quantify waveform vulnerabilities, address which vulnerabilities a particular waveform has, and enable the user to modify the waveform design to optimize its performance against threats prior to implementation. Additionally, the WAVE tool may save time and money since new waveforms can be vetted against the tool before implementation. Data from waveforms can be analyzed against a plurality of metrics and scores can be generated providing a quantitative assessment of waveform performance.

Interference Suppression Using Repeated Reduced Rank Adaptive Filtering In Fractional Fourier Transform (Frft) Domains

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US Patent:
20190294491, Sep 26, 2019
Filed:
May 28, 2019
Appl. No.:
16/423211
Inventors:
- El Segundo CA, US
Seema Sud - Reston VA, US
Assignee:
The Aerospace Corporation - El Segundo CA
International Classification:
G06F 11/07
H03H 17/02
G06F 7/48
Abstract:
A signal-of-interest (SOI) may be separated from interference and/or noise using repeated reduced rank minimum mean-square error Fractional Fourier Transform (MMSE-FrFT) filtering and a low rank adaptive multistage Wiener filter (MWF). A number of stages in the MWF, L, may be chosen such that at the Lstage, the MSE between the SOI estimate and the true SOI is less than or equal to an error threshold ϵ (e.g., ϵ=0.001). By combining these filtering techniques, significant improvement in reducing the mean-square error (MSE) may be realized over single stage MMSE-FrFT, repeated MMSE-FrFT, and MMSE-FFT algorithms—indeed, by an order of magnitude or more.

Interference Suppression Using Repeated Reduced Rank Adaptive Filtering In Fractional Fourier Transform (Frft) Domains

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US Patent:
20190079825, Mar 14, 2019
Filed:
Sep 8, 2017
Appl. No.:
15/698697
Inventors:
- El Segundo CA, US
Seema SUD - Reston VA, US
Assignee:
The Aerospace Corporation - El Segundo CA
International Classification:
G06F 11/07
G06F 7/48
H03H 17/02
Abstract:
A signal-of-interest (SOI) may be separated from interference and/or noise using repeated reduced rank minimum mean-square error Fractional Fourier Transform (MMSE-FrFT) filtering and a low rank adaptive multistage Wiener filter (MWF). A number of stages in the MWF, L, may be chosen such that at the Lstage, the MSE between the SIM estimate and the true SW is less than or equal to an error threshold E (e.g., ∈=0.001). By combining these filtering techniques, significant improvement in reducing the mean-square error (MSE) may be realized over single stage MMSE-FrFT, repeated MMSE-FrFT, and MMSE-FFT algorithms indeed, by an order of magnitude or more.

Separating Weak And Strong Moving Targets Using The Fractional Fourier Transform

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US Patent:
20180011182, Jan 11, 2018
Filed:
Jul 5, 2016
Appl. No.:
15/201672
Inventors:
- El Segundo CA, US
Seema Sud - Reston VA, US
Assignee:
The Aerospace Corporation - El Segundo CA
International Classification:
G01S 13/58
G01S 13/90
G01S 13/60
Abstract:
The Fractional Fourier Transform (FrFT) may be used to extract multiple radar targets in clutter where some targets may be relatively weak. To do this, stronger targets may be removed by rotating to the proper axis tusing rotational parameter a, in which the target signal becomes a strong tone. By searching for the maximum peak over all values of a, stronger moving target echoes can be found and notched out, and weaker targets can then be extracted.

Signal/Noise Separation Using Frft Rotational Parameter Obtained In Relation To Wigner Distribution

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US Patent:
20170168988, Jun 15, 2017
Filed:
Dec 9, 2015
Appl. No.:
14/963329
Inventors:
- El Segundo CA, US
Seema Sud - Reston VA, US
International Classification:
G06F 17/14
Abstract:
A novel approach provides accurate estimation of the parameter a of a Fractional Fourier Transform (FrFT). A value of a may be selected for which the Wigner Distributions (WDs) of a signal-of-interest (SOI) and interference overlap as little as possible. However, instead of computing the WD for each signal, the FrFT may be computed for each WD, recognizing that the projection of the WD of a signal onto an axis tis the energy of the FrFT along the same axis. Since the technique computes a using the SOI and a measure of the interference separately, significant improvements can be made in the estimate, especially at low signal-to-noise ratio (SNR). Once the estimate is obtained, a reduced rank filter may be applied to remove the interference, since minimum mean-square error (MMSE) approaches will again fail when using the low sample support required of non-stationary environments. The technique is not only computationally more efficient than MMSE, but far more robust as well.

Resolving Co-Channel Interference Between Overlapping Users Using Rank Selection

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US Patent:
20140098743, Apr 10, 2014
Filed:
Oct 9, 2012
Appl. No.:
13/648158
Inventors:
- El Segundo CA, US
Seema Sud - Reston VA, US
Assignee:
THE AEROSPACE CORPORATION - El Segundo CA
International Classification:
H04W 4/00
US Classification:
370328
Abstract:
An improved method for resolving interference between co-channel users is disclosed. A peak in a spectrum generated by a MUSIC algorithm is determined for a signal of interest (“SOI”) using a noise subspace. Also, an estimated carrier frequency offset (“CFO”) is determined for the SOI based on the determined peak in the spectrum.
Seema D Sud from Reston, VA, age ~54 Get Report