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公开(公告)号：US08417859B2
公开(公告)日：2013-04-09
申请号：US12569122
申请日：2009-09-29
CPC分类号： H03J1/005 , H03L7/099 , H03L7/16 , H04B1/0014
摘要： Methods and systems to implement and operate software-defined radios (SDRs). An SDR may be configured to perform a combination of fractional and integer frequency synthesis and direct digital synthesis under control of a digital signal processor, which may provide a set of relatively agile, flexible, low-noise, and low spurious, timing and frequency conversion signals, and which may be used to maintain a transmit path coherent with a receive path. Frequency synthesis may include dithering to provide additional precision. The SDR may include task-specific software-configurable systems to perform tasks in accordance with software-defined parameters or personalities. The SDR may include a hardware interface system to control hardware components, and a host interface system to provide an interface to the SDR with respect to a host system. The SDR may be configured for one or more of communications, navigation, radio science, and sensors.
摘要翻译： 实施和运行软件定义无线电（SDR）的方法和系统。 SDR可以被配置为在数字信号处理器的控制下执行分数和整数频率合成和直接数字合成的组合，其可以提供一组相对敏捷，灵活，低噪声和低杂散的定时和频率转换 信号，并且其可以用于维持与接收路径相干的发射路径。 频率合成可以包括抖动以提供额外的精度。 SDR可以包括特定于任务的软件可配置系统，以根据软件定义的参数或个性执行任务。 SDR可以包括用于控制硬件组件的硬件接口系统，以及主机接口系统，以向主机系统提供与SDR的接口。 SDR可以被配置用于通信，导航，无线电科学和传感器中的一个或多个。
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公开(公告)号：US20120252387A1
公开(公告)日：2012-10-04
申请号：US12569122
申请日：2009-09-29
IPC分类号： H04B7/00
CPC分类号： H03J1/005 , H03L7/099 , H03L7/16 , H04B1/0014
摘要： Methods and systems to implement and operate software-defined radios (SDRs). An SDR may be configured to perform a combination of fractional and integer frequency synthesis and direct digital synthesis under control of a digital signal processor, which may provide a set of relatively agile, flexible, low-noise, and low spurious, timing and frequency conversion signals, and which may be used to maintain a transmit path coherent with a receive path. Frequency synthesis may include dithering to provide additional precision. The SDR may include task-specific software-configurable systems to perform tasks in accordance with software-defined parameters or personalities. The SDR may include a hardware interface system to control hardware components, and a host interface system to provide an interface to the SDR with respect to a host system. The SDR may be configured for one or more of communications, navigation, radio science, and sensors.
摘要翻译： 实施和运行软件定义无线电（SDR）的方法和系统。 SDR可以被配置为在数字信号处理器的控制下执行分数和整数频率合成和直接数字合成的组合，其可以提供一组相对敏捷，灵活，低噪声和低杂散的定时和频率转换 信号，并且其可以用于维持与接收路径相干的发射路径。 频率合成可以包括抖动以提供额外的精度。 SDR可以包括特定于任务的软件可配置系统，以根据软件定义的参数或个性执行任务。 SDR可以包括用于控制硬件组件的硬件接口系统，以及主机接口系统，以向主机系统提供与SDR的接口。 SDR可以被配置用于通信，导航，无线电科学和传感器中的一个或多个。
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