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IQ Histogram功能模块

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#1 2021-06-22 17:30
IQ Histogram模块的功能是像"vectorscope"功能模块显示数字调制信号,以X-Y轴表示I-Q信号,包含了随时间变化的信号/样本统计。这是德国安诺尼RTSA软件又一个独特的I/Q视图:

左侧输入接口:
-IQ

IQ Histogram模块提供了the basic Sample Delta modes (bypass, sub, add, mul, rotate and adjustable emphasize), Demodulation (none, ofdm, ofdm_diff), Phase Recovery (none, fixed phase, modulus power, gardner 4, gardner 16, gardner 64), X and Y Source trimming (i, q, r, rq, phi, dphi, phase, band, i4, q4, symbol, symbol4, symbol16, symbol64, symbol256) and adjustable resolution via Value Bins (16 to 1024)参数设置:


16QAM解码信号的IQ histogram视图


IQ Vector Scope视图 vs IQ Histogram视图:


Typical Mission:
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#2 2021-06-22 17:33

UPDATE: We have just added a fully scalable Modulation Grid Overlay for QAM (BPSK, qpsk, 16qam, 64qam, 256qam, 1024qam, 4096qam) and Radial to the IQ Histogram block which you can select from Main -> Grid Overlays:
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