Abstract: A miniature radar target simulator (MRTS) and a system comprising a plurality of MRTS's are described. The MRTS and system are useful for emulating echo signals for a radar DUT with reduced interference. Illustrative radar test systems desirably generate the intended (emulated) radar targets and reduce unwanted (“ghost”) signals, which can result in “ghost targets,” and errant/ambient electromagnetic radiation that reduces the performance and reliability of known re-illuminators and systems including same.

Abstract: A system and method are provided for emulating echo signals using test equipment, including an antenna and an I/Q mixer, in response to a radar signal transmitted by a radar under test. The method includes receiving the radar signal from the radar under test, where a reflection component of the radar signal is reflected from at least the antenna; mixing the received radar signal as a local oscillator (LO) signal with I and Q signals at the I/Q mixer to output a mixing product as a radio frequency (RF) signal, where a leakage component of the LO signal leaks through the I/Q mixer; substantially canceling the reflection component of the radar signal using the leakage component of the LO signal; and transmitting the RF signal as the emulated echo signal to the radar under test, wherein the emulated echo signal indicates at least a range to the emulated target.

Abstract: A miniature radar target simulator (MRTS) and a system comprising a plurality of MRTS's are described. The MRTS and system are useful for emulating echo signals for a radar DUT with reduced interference. Illustrative radar test systems desirably generate the intended (emulated) radar targets and reduce unwanted (“ghost”) signals, which can result in “ghost targets,” and errant/ambient electromagnetic radiation that reduces the performance and reliability of known re-illuminators and systems including same.

Abstract: A system and method are provided for emulating echo signals using test equipment, including an antenna and an I/Q mixer, in response to a radar signal transmitted by a radar under test. The method includes receiving the radar signal from the radar under test, where a reflection component of the radar signal is reflected from at least the antenna; mixing the received radar signal as a local oscillator (LO) signal with I and Q signals at the I/Q mixer to output a mixing product as a radio frequency (RF) signal, where a leakage component of the LO signal leaks through the I/Q mixer; substantially canceling the reflection component of the radar signal using the leakage component of the LO signal; and transmitting the RF signal as the emulated echo signal to the radar under test, wherein the emulated echo signal indicates at least a range to the emulated target.

Abstract: An apparatus, method and system extend the dynamic range measurements performed on a device under test. The apparatus and method compensate for the non-ideal characteristics of the measurement system elements. Further, the apparatus, method and system facilitate low-level distortion measurements and improve the accuracy of such measurements using a novel cancellation signal approach. The dynamic range extension apparatus has an input port for accepting an input test signal from a signal source and an output port for delivering an output signal to a measurement processor. The apparatus comprises a signal splitter at its input, a cancellation pathway, a test pathway and a signal combiner at its output. The system comprises a signal source that provides an input signal to the input of the apparatus and a measurement processor at the output of the apparatus. In the dynamic range extension apparatus, method and system, a signal from the input signal source is split by the signal splitter into two signals.

Abstract: An apparatus, method and system extend the dynamic range measurements performed on a device under test. The apparatus and method compensate for the non-ideal characteristics of the measurement system elements. Further, the apparatus, method and system facilitate low-level distortion measurements and improve the accuracy of such measurements using a novel cancellation signal approach. The dynamic range extension apparatus has an input port for accepting an input test signal from a signal source and an output port for delivering an output signal to a measurement processor. The apparatus comprises a signal splitter at its input, a cancellation pathway, a test pathway and a signal combiner at its output. The system comprises a signal source that provides an input signal to the input of the apparatus and a measurement processor at the output of the apparatus. In the dynamic range extension apparatus, method and system, a signal from the input signal source is split by the signal splitter into two signals.