二维情况的chan定位算法，1994年原版论文代码实现，可以支持远近和linear nonlinear四种模式(2 dimension chan algorithm, TDOA localization. Including near, far field and linear nonlinear sensor array)

适用于TDOA的CHAN算法，双曲线最小二乘法(CHAN algorithm suitable for TDOA and hyperbolic least squares method.)