MRI: Development of a Flexible Multichannel Digital Receiver for Radio Astronomy

MRI：开发用于射电天文学的灵活多通道数字接收器

• 批准号: 0821780
• 负责人: Karl Warnick
• 金额: $ 64.13万
• 依托单位: Brigham Young University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0821780&HistoricalAwards=false
• 关键词: MRI; Development; Flexible; Multichannel; Digital

This project is for the development of a multichannel low noise receiver, data acquisition, and digital signal processing system for experimental development work in radio astronomy. The system will support multiple ongoing research efforts to study new techniques involving antenna array instrumentation and signal processing algorithms. Applications include centimeter-band focal plane array development work, radio frequency interference mitigation algorithms for focal plane arrays and synthesis arrays, and data gathering to verify and refine ionospheric correction techniques for direction-dependent self calibration in long wavelength synthesis imaging.

该项目旨在开发多通道低噪声接收器、数据采集和数字信号处理系统，用于射电天文学的实验开发工作。该系统将支持多项正在进行的研究工作，以研究涉及天线阵列仪器和信号处理算法的新技术。应用包括厘米带焦平面阵列开发工作、焦平面阵列和合成阵列的射频干扰缓解算法，以及用于验证和完善长波长合成成像中方向相关自校准的电离层校正技术的数据收集。