вторник, 5 мая 2009 г.

XSL - Japanise Slotmachine itself

XSL - Japanise Slotmachine
Japanise Navy? PSK-4, Br-1500

the signal

the synthesis-model of the signal

SergUA6 6.0

(Band Width) ~2000-2050 Hz
(Low Range) ~400 Hz, shift is possible. recieving in SSB
(Baud Rate) 1500 Hz
n-Ary (PSK/MPSK) 4
(Carrier frequency) ~1512 in this record. shift is possible. recieving in SSB
(ACF) ~94-100 ms
(RX mode) SSB
Sonograms(pictures 1,2,3)

pic.1 The general look of the signal
pic.2 manipulation speed
pic.3 4th harmonic of the signal
pic.4 Diagrams (phase constellation of the signal)

XSL Japanise Slotmachine - is the popular enought signal, and at the same time, it is very difficult for the analysis. Complexities are connected with the quality of records first of all. From all variety of the found files, only that record has allowed to analyze the signal well. The signal is very bright as we can hear, and as we also can see on the spectrum. These two factors, together with ACF, allow to identify the signal very reliably.