code value
2.With the principle as enhance bar code value through integration, and basic on the powerful technology supports and mature developing experiences, LENX (Shanghai) devote to improving operation efficiency and economic benefit for clients, inheriting the spirit of assistant client for success, creativity first, be trustful and responsible.
9.Based on the use of digital matched filter(DMF)and automatic frequency control(AFC)loop,two characteristics of the DMF are exploited to reduce the mean acquisition time (MAT)of Doppler shift,namely,the rapid acquisition property of PN code and a high sensitivity of maximum correlation value to frequency offset.

