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complete orthogonal signal set	完备正交信号集
noncontinuous orthogonal frequency division multiplexing	非连续正交频率多路区分传输
orthogonal coded LFM pulse train	正交码线性调频脉冲串
orthogonal coded LFM-LFM pulse train	正交码线性调频-线性调频脉冲串
orthogonal coded NLFM-LFM pulse train	正交码非线性调频-线性调频脉冲串
orthogonal coded pulse train	正交码脉冲串
orthogonal frequency division multiplexing	正交频分多路技术
orthogonal frequency division multiplexing	正交频率多路区分传输
orthogonal mode transducer	正交模变换器
polarization match and polarization orthogonal	极化匹配与极化正交
signal representation by orthogonal function	信号正交函数表示法