FMCW radar system with linear frequency modulation

Communications: directive radio wave systems and devices (e.g. – With particular circuit – For frequency modulation

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G01S 1334

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active

052529819

ABSTRACT:
It has been proposed in accordance with the invention to determine the linearity of the modulated oscillator frequency of an FMCW radar by means of the Hilbert transformation and to supply a control voltage, corresponding to the deviation, to the controllable oscillator via a digital/analog converter. A control and computing unit is used to determine the linearity of the modulated oscillator frequency.

REFERENCES:
patent: 4590445 (1986-05-01), Tabourier
patent: 4593287 (1986-06-01), Nitardy
patent: 4968968 (1990-11-01), Taylor
N. Thrane, "The Hilbert Transform", in Technical Review to Advance Techniques in Acoust., Elec. & Mech. Measurement, 1984, No. 3, pp. 3-13, published by Bruel & Kjaer.
Samuel D. Stearns, Digitale Verarbeitung analoger Signale subtitled Digital Signal Analysis, pp. 61-75, 4th Edition, 1988, published by R. Oldenbourg Verlag, Vienna, Austria.
Motorola Semiconductor Technical Datasheet on DSP 56001 24-bit General Purpose Digital Signal Processor, cop. 1991.
Burr-Brown Corporation Datasheet on DAC707, DAC 708/709 Microprocessor-Compatible Digital-to-Analog Converters, 1986.
Burr-Brown IC Data Book, vol. 33, p. 9.2-107, entitled "ADC601 12-Bit 900 nanosecond Analog-to-Digital Converter".

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