초록 ▼

An association method for a multi-slope FMCW radar identifies candidate combinations of frequency components as being correctly or incorrectly associated based on calculated range-rate. Range and range-rate are calculated for various pairs of frequency components emanating from like-polarity slopes

An association method for a multi-slope FMCW radar identifies candidate combinations of frequency components as being correctly or incorrectly associated based on calculated range-rate. Range and range-rate are calculated for various pairs of frequency components emanating from like-polarity slopes of the transmitted waveform, and pairs having similar ranges and range-rates are combined to form candidate associations. The range and range rate of the candidate associations are then computed using all four frequency components, and ambiguous candidate associations are resolved by selecting the candidate associations having similar range rates.

대표청구항 ▼

1. A method of operation for a radar system that transmits a multiple-slope frequency modulated continuous wave signal and identifies primary frequency components of a baseband signal containing range and range-rate information for targets in a field of view of the radar system, the method comprisin

1. A method of operation for a radar system that transmits a multiple-slope frequency modulated continuous wave signal and identifies primary frequency components of a baseband signal containing range and range-rate information for targets in a field of view of the radar system, the method comprising the steps of:forming potentially related sets of frequency components by associating potentially related frequency components from like-polarity slopes of the transmitted signal; computing range and range-rate values based on each of the formed sets, and comparing such values to identify those sets of frequency components that are potentially attributable to a given target; combining potentially related sets of the identified frequency components from opposite-polarity slopes of the transmitted signal; computing range and range-rate values for each of the combined sets of frequency components, and identifying combined sets of frequency components that are attributable to the given target as those having a substantially identical range-rate; and attributing the computed range and range-rate of the identified combined sets of frequency components to the given target.