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澳大利亚空间技术公司(Auspace Ltd.)发明了一种便携式卫星信号接收器。该卫星信号接收器与美国国防部的21—卫星导航设备的地面定位系统相联络。 Auspace接收器采用一台数字信号处理机,一大功率计算机集成电路块,并采用开环相位相干设计。这样,它能使接收器不受剧烈振动的影响。据称,这种卫星信号接收器使用五个频道系统,能不断地调整同时来自五个卫星的信号,使接收器能特别精确地指向并确定地面目
Auspace Ltd. invented a portable satellite signal receiver. The satellite signal receiver interfaces with the U.S. Department of Defense’s ground-based positioning system for 21-satellite navigation equipment. The Auspace receiver uses a digital signal processor, a high-power computer integrated circuit block, and uses open-loop phase coherent design. In this way, it keeps the receiver immune to violent vibrations. Allegedly, this satellite signal receiver using five channel systems, can continue to adjust the signal from five satellites at the same time, so that the receiver can be particularly precisely point to and determine the ground