Direct digital synthesizer for motor vehicle`s linear frequency modulated continuous wave radar system, has amplitude quantization unit for quantizing amplitude information signal under regeneration of quantization noise by filter

摘要

The synthesizer (10) has a phase accumulation unit accumulating a phase increment with overflow to a phase information signal. A phase quantization unit quantizes the signal. A lookup table images the signal on an amplitude information signal. An amplitude quantization unit quantizes the amplitude information signal under regeneration of quantization noise by a filter such that the regeneration of the noise has zero position at two different frequencies in the transfer function. A digital/analog converter converts the quantized amplitude information signal into an oscillation signal. An independent claim is also included for a method for producing an oscillation signal.