Non-Linear Superposition of Broadband Spectra for Fast Emission Measurements in Time Domain

According to the standards, emission measurements are carried out in the frequency domain using a test receiver. In this paper the set-up and procedures of a measuring system in the time domain is presented. The advantage of this system is, that measurements can be done approximately 10 to 100 times faster. A special procedure to measure a pulse was already described in [2]. This paper presents a procedure to calculate the spectrum of the superposition of two pulses. The difficulty hereby is the non-linearity of the detectors.