{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9791551","patent":{"patent_number":"US-9791551","title":"Vehicular radar system with self-interference cancellation","assignee":null,"inventors":[],"filing_date":"2017-04-25T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S"],"num_claims":20,"abstract":"A digital FMCW radar is described that simultaneously transmits and receives digitally frequency modulated signals using multiple transmitters and multiple receivers and associated antennas. Several sources of nearby spillover from transmitters to receivers that would otherwise degrade receiver performance are subtracted by a cancellation system in the analog radio frequency domain that adaptively synthesizes an analog subtraction signal based on residual spillover measured by a correlator operating in the receivers' digital signal processing domains and based on knowledge of the transmitted waveforms. The first adaptive cancellation system achieves a sufficient reduction of transmit-receive spillover to avoid receiver saturation or other non-linear effects, but is then added back in to the signal path in the digital domain after analog-to-digital conversion so that spillover cancellation can also operate in the digital signal processing domain to remove deleterious spillover components."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Vehicular radar system with self-interference cancellation","description":"A digital FMCW radar is described that simultaneously transmits and receives digitally frequency modulated signals using multiple transmitters and multiple receivers and associated antennas. Several s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9791551","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9791551","citation_suggestion":"Patentable. \"Vehicular radar system with self-interference cancellation\" (US-9791551). https://patentable.app/patents/US-9791551","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9791551","json":"https://patentable.app/api/llm-context/US-9791551","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:41:05.992Z"}