{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9645003","patent":{"patent_number":"US-9645003","title":"Efficient dispersion correction for FMCW-radar in a pipe","assignee":null,"inventors":[],"filing_date":"2015-02-12T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S"],"num_claims":17,"abstract":"A method for determining a distance to a surface of a medium or to another radar target in a pipe by means of a radar measurement apparatus. Transmitting within the pipe a radar transmission signal frequency modulated according to the FMCW principle, receiving a radar received signal reflected on the surface of the medium or on the other radar target in the pipe back to the radar measurement apparatus, mixing the radar received signal with the radar transmission signal or a signal derived therefrom and producing an intermediate signal. Determining a frequency spectrum of the intermediate signal or a signal derived therefrom by means of fast Fourier transformation and detecting the position of the frequency peak in the frequency spectrum. Determining a dispersion correction for removing, respectively lessening, dispersion effects, applying the dispersion correction to the intermediate frequency signal or to a signal derived therefrom and producing a dispersion corrected signal, and determining the position of the frequency peak in the frequency spectrum of the dispersion corrected signal anew by introducing a number of frequency support points in the region of the previously detected frequency peak, determining the respective frequency amplitudes selectively at the newly introduced frequency support points, and ascertaining the position of the frequency peak in the frequency spectrum of the dispersion corrected signal using the frequency amplitudes at the newly introduced frequency support points."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Efficient dispersion correction for FMCW-radar in a pipe","description":"A method for determining a distance to a surface of a medium or to another radar target in a pipe by means of a radar measurement apparatus. Transmitting within the pipe a radar transmission signal fr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9645003","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-9645003","citation_suggestion":"Patentable. \"Efficient dispersion correction for FMCW-radar in a pipe\" (US-9645003). https://patentable.app/patents/US-9645003","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9645003","json":"https://patentable.app/api/llm-context/US-9645003","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:39:44.588Z"}