US 12,146,938 B2
RF-DAC digital signal modulation
Niels Christoffers, Vienna (AT); Sanaz Hadipour Abkenar, Linz (AT); Soumya Krishnapuram Sireesh, Linz (AT); and Christoph Wagner, Enns (AT)
Assigned to INFINEON TECHNOLOGIES AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Aug. 9, 2021, as Appl. No. 17/397,271.
Application 17/397,271 is a continuation in part of application No. 16/167,925, filed on Oct. 23, 2018, granted, now 11,086,004.
Prior Publication US 2021/0373145 A1, Dec. 2, 2021
Int. Cl. G01S 13/34 (2006.01); G01S 13/32 (2006.01); G01S 13/36 (2006.01); H03M 1/06 (2006.01)
CPC G01S 13/343 (2013.01) [G01S 13/325 (2013.01); G01S 13/36 (2013.01); H03M 1/0668 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of detecting a range at a radar frequency, the method comprising:
performing a translation of a timing signal into an analog signal by:
generating, according to the timing signal, a first digital value and a second digital value based upon a random phase value, wherein at least one of the first digital value or the second digital value corresponds to a quadrature representation of a radar modulating signal, and
translating the first digital value and the second digital value with a radiofrequency digital-to-analog converter to generate the analog signal;
applying the translation to generate a transmission signal at the radar frequency; and
combining the transmission signal and a received signal comprising a reflection of the transmission signal to determine the range.