Principal Signal Processing Scientist

Key Skills

Effective communication skills, Large Language Models - LLMs, Leadership Skill, Machine learning techniques, Optimization, Signal processing

Job Description

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 in Arlington, VA. 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.

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
• 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

Requirements:

• Typically requires a Bachelor’s or higher in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 6 years of prior experience or an Advanced Degree in a related field
• Develops and applies advanced methods, theories, and R&D techniques from a variety of technical specialties for complex and difficult problems.
• Independently executes responsibilities with minimal review or supervision.
• Plans new projects and is project leader, or is technical lead on projects of substantial size, complexity, and importance to the organization. Defines assignments for less senior professionals and provides supervision.
• Takes proactive action to anticipate, understand, and meet customer needs.
• Speaks for BBN to external customers; customer relies on experience and performance.
• Develops novel concepts that address challenging technical problems of concern to BBN’s customers.
• Documents plans and scientific findings.
• Position may require some amount of overnight travel.
• Position requires the ability to obtain a government security clearance.
• The nature of the work requires routine access to various closed spaces in the Arlington, VA office.

Our Work/Life benefits include – Paid Parental Leave – Adoption Assistance – Auto and Home Insurance – Child/Elder Back Up Care – College Coach – Retirement Planning Services – Flexible Work Arrangements - Legal Services – LifeResources – Employee Discount Program – Educational Assistance – Transportation Benefits – and Wellness Reward