This effect is especially serious for the double sideband receiver. 这一效应对双边带(DSB)接收机尤为严重。
This paper discussed the double sideband noise figures and single side band noise figures of the superheterodyne receivers in a ideal hypothesis and the practical case respectively. It also gave some considerations designing the single side band receiver. 分别讨论了在理想假设和实际情况下超外差接收机的双边带(DSB)噪声系数和单边带噪声系数,给出了单边带接收机的某些设计方案。
An improved method on the structure of double sideband phase detection in optical fiber communication system with non return to zero data is described for real-time accumulated dispersion monitoring, the theory of this method is deduced and the numerical simulation is presented. 在双边带(DSB)相位监测方法的基础上,对系统结构进行了改进,提出了一种用于非归零码光纤通信系统累积色散实时监测的新方法,并进行了详细的理论推导和仿真计算。
The effect of double sideband on the performance of radio over fiber system is theoretically analyzed, and the requirements of single sideband filtering to reflective spectrum and reflectivity of narrow-band fiber Bragg grating are discussed. 分析了RoF系统中双边带(DSB)调制对系统带来的影响,以及单边带滤波对窄带光纤光栅反射光谱和反射率的要求。
Amplitude modulator is a committed step in the signal processing, it has determined to output working efficiency and quality of the launcher directly. Adoptable amplitude modulate scheme have double sideband amplitude modulator, single sideband amplitude modulator and quadrature amplitude modulator etc. 振幅调制是信号处理中的关键步骤,它直接决定了输出发射器的工作效率和质量,可采用的振幅调制方案有双边带(DSB)振幅调制、单边带振幅调制以及正交振幅调制等。