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在卫星通信领域中,所要采集的数字信号主要是从卫星上接收下来,经过接收机、解调器解调后的信号,我们以前使用的各种采集设备,有的采集速率低,有的不够便携,为了适应各种速率和型号的解调器,就必须研制具有针对性和专用性的数字采集设备,它须有多规格信号接口,兼容各种高低速率的信号采集、具有小型化和便携化等特点,以此适应卫星采集领域的应用。文中介绍了一种基于USB2.0的数字高速采集设备的设计方法。
In the field of satellite communications, the digital signals to be collected are mainly received from satellites, and the signals demodulated by receivers and demodulators. The various acquisition devices we used in the past have some low acquisition rates and some are not enough Portable, in order to adapt to a variety of rate and type of demodulator, it is necessary to develop a targeted and dedicated digital acquisition equipment, it must have a multi-standard signal interface, compatible with a variety of high and low rate signal acquisition, with miniaturization and portability And other characteristics, in order to adapt to the field of satellite acquisition applications. This paper introduces a USB2.0-based digital high-speed acquisition equipment design method.