Act as routine dispose signal estimation route to, recursion least square method possess in a position to at approximate time bring relative comparison small error.
作为常规的处理信号估计的方法，递归最小二乘法具有能够在估计的时候产生相对比较小的误差。
2
Magnetic fields generate error voltages in two circumstances: 1 if the field is changing with time, and 2 if there is relative motion between the circuit and the field.
在两种情况下磁场会产生误差电压：1磁场随时间变化。2在电路和磁场之间存在相对运动。
3
Unbiased estimation of flow size, the upper bound of relativeerror and the time and space complexity are deduced theoretically.