- 
				           		目前的路径延迟模型是参数估计及外部修正法。
						        					            	 Currently the path delay model consists in parameter estimation.
								    										 
								    				            	 youdao 
- 
				           		时序模型的参数估计是时序模型建模的核心。
						        					            	 Parameter estimation is the key in building up a model in time series analysis.
								    										 
								    				            	 youdao 
- 
				           		时序模型的参数估计是时序模型建模的核心。
						        					            	 Parameter estimation is the key in building up a model in time series analysis.
								    										 
								    				            	 youdao