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1. (WO2018162264) METHOD AND APPARATUS FOR COMPRESSING DATA DURING MEASUREMENTS

Pub. No.:    WO/2018/162264    International Application No.:    PCT/EP2018/054634
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Tue Feb 27 00:59:59 CET 2018
IPC: G01S 7/35
G01S 13/34
G01S 13/93
Applicants: HELLA GMBH & CO. KGAA
Inventors: VON RHEIN, Andreas
Title: METHOD AND APPARATUS FOR COMPRESSING DATA DURING MEASUREMENTS
Abstract:
Method for compressing data for storing an echo of a modulated continuous-wave radar signal during a cycle with the period T, - wherein the continuous-wave signal has a number N of signal sequences in the period T, - wherein each signal sequence in a signal sequence period T c passes through a frequency swing Δfc, - wherein a radar signal is received and down-mixed during the cycle, - wherein the down-mixed signal is uniformly sampled using analogue/digital conversion at a frequency of nc * N/T during the period T and is converted into n c * N digital samples, wherein a tuple of samples having a number of n c samples is generated in sync with each signal sequence period T c , wherein - of first tuples, the tuple of samples with ordinal numbers from a first ordinal number range are stored and - of second tuples which differ from the first tuples, the tuple of sample values with ordinal numbers from a second ordinal number range are stored, - wherein the second ordinal number range is a sub-range of the first ordinal number range.