A method comprising: transmitting an electromagnetic first transmitted signal (106; 322) from a transmitting antenna (204; 2604) toward a target object (104; 2804) that is a separated from the transmitting antenna (204; 2604) by a separation distance (110; 3002), the first transmitted signal (106; 322) including a first transmit pattern representative of a first sequence of digital bits (300, 302); and receiving a first echo of the first transmitted signal (106; 322) that is reflected off the target object (104; 2804); characterized in that the method further comprise: converting the first echo into a first digitized echo signal (226; 740; 1400, 1402, 1404); comparing a digital first receive pattern representative of a second sequence of digital bits (300, 302) to the first digitized echo signal (226; 740; 1400, 1402, 1404) to determine a time of flight of the first transmitted signal and the first echo; transmitting an electromagnetic second transmitted signal (106; 322) toward the target object (104; 2804), the second transmitted signal including a second transmit pattern representative of a third sequence of digital bits (300, 302); receiving a second echo of the second transmitted signal (106; 322) that is reflected off the target object (104; 2804); converting the second echo into a baseband echo signal (226; 740; 1400, 1402, 1404); comparing a digital second receive pattern representative of a fourth sequence of digital bits (300, 302) that is delayed by the time of flight from the third sequence of digital bits (300, 302) in the second transmit pattern to the baseband echo signal (226; 740; 1400, 1402, 1404) to determine temporal misalignment between one or more waveforms (812; 910) of the baseband echo signal (226; 740; 1400, 1402, 1404) and one or more waveforms (812; 910) of the second receive pattern, the temporal misalignment representative of a time lag between the second receive pattern and the baseband echo signal (226; 740; 1400, 1402, 1404); and adding the time lag to the time of flight to determine a distance to the target object. transmitting an electromagnetic first transmitted signal (106; 322) from a transmitting antenna (204; 2604) toward a target object (104; 2804) that is a separated from the transmitting antenna (204; 2604) by a separation distance (110; 3002), the first transmitted signal (106; 322) including a first transmit pattern representative of a first sequence of digital bits (300, 302); and receiving a first echo of the first transmitted signal (106; 322) that is reflected off the target object (104; 2804); converting the first echo into a first digitized echo signal (226; 740; 1400, 1402, 1404); comparing a digital first receive pattern representative of a second sequence of digital bits (300, 302) to the first digitized echo signal (226; 740; 1400, 1402, 1404) to determine a time of flight of the first transmitted signal and the first echo; transmitting an electromagnetic second transmitted signal (106; 322) toward the target object (104; 2804), the second transmitted signal including a second transmit pattern representative of a third sequence of digital bits (300, 302); receiving a second echo of the second transmitted signal (106; 322) that is reflected off the target object (104; 2804); converting the second echo into a baseband echo signal (226; 740; 1400, 1402, 1404); comparing a digital second receive pattern representative of a fourth sequence of digital bits (300, 302) that is delayed by the time of flight from the third sequence of digital bits (300, 302) in the second transmit pattern to the baseband echo signal (226; 740; 1400, 1402, 1404) to determine temporal misalignment between one or more waveforms (812; 910) of the baseband echo signal (226; 740; 1400, 1402, 1404) and one or more waveforms (812; 910) of the second receive pattern, the temporal misalignment representative of a time lag between the second receive pattern and the baseband echo signal (226; 740; 1400, 1402, 1404); and adding the time lag to the time of flight to determine a distance to the target object.