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随着计算机技术、微电子技术、自动控制技术等的发展,通信技术正在发生翻天覆地的变化。由于通信技术的迅速发展,一方面使通信产品的生存周期缩短,开发费用上升;另一方面,新老通信体制共存,使各种通信系统之间的互联变得更加复杂、困难。在这种情况下,软件无线电技术应运而生,并由于其灵活性、通用性的特点在商用和军用无线电通信领域显示出其强大的吸引力。
With the development of computer technology, microelectronics technology and automatic control technology, the communication technology is undergoing tremendous changes. Due to the rapid development of communication technologies, the life cycle of communication products has been shortened and development costs have been raised. On the other hand, the coexistence of new and old communication systems has made the interconnection between various communication systems more complicated and difficult. Under such circumstances, software radio technology has emerged and has shown its strong appeal in both commercial and military radiocommunications for its flexibility and versatility.