离散频谱 discrete spectrum
雷达扩散频谱 Radar spread spectrum
水分子扩散频谱造影 Diffusion Spectrum Imaging
扩散频谱信号 spread spectrum signal
离散频谱校正 discrete spectrum correction
扩散频谱时域反射法 SSTDR
直接序列扩散频谱 Direct Sequence Spread Spectrum ; DSSS
频带直接序列扩散频谱 DSSS ; Direct Sequence Spread-Spectrum
弥散频谱成像 diffusion spectrum imaging
频谱扩散 Spectrum spreading
由于杂散性能较差是DDS应用受限的主要原因,本文从理论和实际应用两个方面着重分析了实际参数DDS的输出频谱特性。
The bad spurious performance is the major problem that restricts the applications of DDS, so the theoretical and practical analysis attaches importance to the spectrum performance of DDS.
由于相位舍位会导致直接数字频率合成器(DDS)的输出产生杂散,使其频谱特性恶化。
As we know, spurious noise of a DDS resulted from phase truncation degrades its spectral characteristics.
为探讨三阶色散对脉冲传播的意义,用数值模拟的方法讨论了在色散缓变光纤中零色散波长附近三阶色散对脉冲频谱演变的影响。
Propagation of spectra affected by third-order dispersion in dispersion-decreasing fiber near zero dispersion wavelengths was studied by means of numerical simulation.
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