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发明公开
CN105510653A 一种基于自适应最小均方算法的正交信号发生器系统 有权

一种基于自适应最小均方算法的正交信号发生器系统
摘要：
本发明涉及一种基于自适应最小均方算法的正交信号发生器系统，其技术特点是：包括自适应带通滤波器和正交信号发生器，所述自适应带通滤波器和正交信号发生器相连接，该正交信号发生器包括相互连接的乘法器、积分器和放大器；所述自适应带通滤波器的自适应系统的闭环传递函数为：其中，s＝jω，k＝μ/Ts；所述正交信号发生器的闭环传递函数为:本发明在正交信号发生器系统在产生所需的正交信号的同时能够消除直流偏置分量对锁相环性能的影响且该结构便于离散化实现。
摘要（英）：

The invention relates to a quadrature signal generator system based on a self-adaptive least mean square algorithm. The system is technically characterized by comprising a self-adaptive band-pass filter and a quadrature signal generator, the self-adaptive band-pass filter and the quadrature signal generator are connected with each other, and the quadrature signal generator comprises a multiplier, an integrator and an amplifier which are connected with each other; a closed-loop transfer function of the self-adaptive system of the self-adaptive band-pass filter is as shown in the description, wherein s=j, k=/Ts; a closed-loop transfer function of the quadrature signal generator is as shown in the description. The system can generate the required quadrature signal and also can eliminate the influence from DC bias component to phase-locked loop performance, and the composition is easy to realize discretization.

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