Senior Principal, Signal Processing Research Scientist

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At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Join us and help shape the future of aerospace and defense.

Role Overview:

BBN Technologies solves challenging problems of high importance to our customers in the Department of Defense, the Intelligence Community and Industry by rapidly prototyping systems for sensing complex physical phenomena, correlating them to events of interest, and producing high-value, actionable information from the sensed data. Our team specializes in developing next-generation sensor system technologies by combining a fundamental understanding of the underlying EM physics including complex electromagnetic interactions and signatures, and propagation phenomenology, with a deep expertise in analysis, statistical signal processing, optimization, and machine learning We are currently searching for a highly qualified RF Signal Processing Research Scientist to join our team. Desirable candidates will have experience deriving and implementing research-grade algorithms and applying these to data collected from real sensors. Qualified candidates will have academic or professional experience in several of the areas listed below.

What You Will Do:

Statistical signal processing:

• Estimation techniques including Bayesian and non-Bayesian estimators, performance measures such as bias and mean-square error and bounds on estimator performance such as the Cramer-Rao lower bound.
• Detection techniques including the Neyman-Pearson detection, probabilities of detection and false alarm, receiver operating curves, etc.

Cyclostationary signal processing:

• CAF, SCF, SOF estimation.
• Computation of Cyclic Cumulants.
• Cyclic Feature Detection.

Adaptive signal processing:

• Temporal and space-time adaptive processing.
• Interference covariance estimation techniques including both structured and reduced-rank techniques.
• Wiener filtering and on-line adaptive techniques such as LMS and RLS.
• Kalman filtering, particle filtering, and multi-hypothesis tracking.
• Machine learning and optimization for optimal control.

RF propagation and signature modeling:

• Link budgets, terrestrial and free-space propagation models, multipath, non-stationary propagation environments (Doppler spread), clock stability and phase noise, and target kinematics.
• Antenna pattern estimation.
• Estimation of bistatic RCS.

Sensing:

• Sparse array processing, beamforming, direction finding, filtering and tracking.
• Range-Doppler radar and synthetic aperture radar (SAR).
• Signal classification and recognition.

Physical-layer communications:

• Modulation techniques and tradeoffs, channel estimation and tracking, MIMO communications, equalization, forward error correction and decoding.
• LPX waveform design.
• Multi-user detection.

Qualifications You Must Have:

• M.S. in Electrical Engineering, Mathematics, or Physics plus 10 years of relevant experience, or Ph.D. plus 8 years experience.
• Experience with signal processing, including estimation, detection, etc.
• Experience with RF modeling and sensing.
• An active government Top Secret security clearance.
• Position will require some overnight travel.
• Experience applying advanced methods, theories, and R&D techniques to solve difficult problems.
• Skillset to tackle research challenges proactively with minimal supervision and periodic check-ins with team leads.
• Experience leading small teams of technical contributors.
• Experience documenting plans and scientific findings with opportunities to present to government customers.

What We Offer:

Benefits (focus on unique benefits vs. standard). You may use your current requisition benefits content provided they have been reviewed by your HR Bus. Partner and Recruiter. Or you may use - Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement, and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.

• Relocation Assistance available

To help you achieve your goals, BBN will provide

• A strong leadership team well-versed in government R&D.
• A collaborative and collegial environment to push state-of-the-art research.
• A diverse and technically competent pool of research scientists who are willing to mentor, listen, and help you refine your research vision and goals.
• Business development, programmatic, contracting, finance, and HR support.
• Access, through RTX, to opportunities that help transition your research and ultimately see it fielded.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.