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    P.25

    P.25 emergency signal reception

    P.25 emergency signal reception using captured signals or software-defined radios.

    Featured Examples

    P25 Spectrum Sensing with Synthesized and Captured Data

    P25 Spectrum Sensing with Synthesized and Captured Data

    Use cyclostationary feature detection to distinguish signals with different modulation schemes, including P25 signals [ 1]. It defines four cases of signals: noise only, C4FM, CQPSK, and one arbitrary type. The example applies the detection algorithm to signals with different SNR values, and to a captured real-world P25 signal, and then classifies the signals as one of the four types. Graphical results show that the detection algorithm succeeds in all the cases.

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