In order to reliably obtain real-time attitude information of large-scale operation system

GPS single baseline real-time attitude determination system based on MEMS inertia devices is implemented.The inertia attitude measurement system（IAMS）is composed of MEMS gyroscopes and inclination and levelling.GPS attitude measurement provides IAMS’s initial alignment and weakens IAMS’s error propagation.In the event of lost satellite

cycle slip

system adopts single epoch fast integer ambiguity resolution based on IAMS.Hardware system based on FPGA and float point DSP is implemented.Experimental analysis shows that the method proposed can obtain measurement data real time

reliably and stably.It has the performance of high precision

and the calculation amount is smaller

which can meet the need of simple and easy to use.