ATP-3-09-02 Field Artillery Survey Download
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Improved Position Azimuth Determining System 16 February 2016 ATP 3-09.02 8-3 Figure 8-1. Improved Position Azimuth Determining System IPADS OR IPADS-G COMPONENTS 8-11. The major components of the IPADS or IPADS-G include a CPNU, a CDU and a BCU. Connection of a GPS antenna (see figure 8-2 on page 8-4) to the CPNU via a GPS antenna cable makes it an IPADS-G. The CPNU contains the gyroscope and accelerometer sensors and the associated electronics necessary to maintain the survey coordinate frame and to measure the distance traveled to each coordinate axis (see figure 8-3 on page 8-4). The CPNU also contains the porro prism for optical transfer through use of auto- reflection. The CDU is the main interface between the operator and IPADS or IPADS-G (see figures 8-4 and 8-5 on page 8-5). The CDU contains the computer, keyboard, and graphic display for operator entry and to display survey data and system commands. The BCU contains IPADS or IPADS-G backup batteries and associated switching and charging electronics (see figure 8-6 on page 8-6). The BCU can be used to transfer IPADS or IPADS-G between host vehicles without losing information or requiring that the system be reinitialized (only updated). The IPADS or IPADS-G is configured for simple and rapid exchange between supporting vehicles and is a non-developmental item. The system is operated by trained personnel in support of combat or training operations.