          |  Phase shift keying UWB SRR Phase shift keying radar devices operate with a continuous carrier emission. In the case of a binary phase shift keying (BPSK) modulation the carrier phase is shifted by 180 degrees according to a pseudo-noise chip pattern. Typical operational parameters of a BPSK radar are shown in Table 2:
Table 2: Typical 24 GHz SRR operation parameters for a BPSK modulation
Depending on the quality of the phase shifting hardware it is possible to generate a pattern with completely suppressed continuous carrier signal.
Figure 2: BPSK pattern with suppressed carrier |  | ||||||||||||||
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