Receiver Gain Calibration for Radio Observations at the Waseda Nasu Pulsar Observatory
Receiver Gain Calibration for Radio Observations at the Waseda Nasu Pulsar Observatory
复制标题
早稻田那须脉冲星天文台射电观测的接收机增益校准
DOI：
10.1086/511388
复制
发表时间：
2006
影响因子：
3.5
通讯作者：
T. Daishido
中科院分区：
文献类型：
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作者：
K. Niinuma;M. Kuniyoshi;N. Matsumura;K. Takefuji;S. Kida;A. Takeuchi;R. Nakamura;S. Suzuki;H. Ichikwa;K. Asuma;T. Daishido
我们已经在早稻田纳苏脉冲星天文台启动了识别白鹭γ射线源和搜索无线电瞬变的计划。观测频率为1.4±0.01 GHz，采用8元球盘天线作为4对干涉仪，每个元的直径为20m。观测区域距天顶±5°，覆盖了32°≤δ≤42°的天区。为了准确测量流量，我们开发了一种使用Johnson-Nyquist噪声的接收器增益校准系统，该系统结构紧凑，成本低廉，易于维护。我们描述了无线电源监测的系统和最新结果。
We have started programs at the Waseda Nasu Pulsar Observatory to identify EGRET γ‐ray sources and to search for radio transients. The observed frequency was 1.4 ± 0.01 GHz, and eight‐element spherical dish antennas were used as four pairs of interferometers, with each element 20 m in diameter. The observable region was ±5° from zenith, covering a region of sky 32°≤δ≤42° in declination. For accurate flux measurement, we developed a receiver gain calibration system using Johnson‐Nyquist noise; the system was compact, inexpensive, and easily maintained. We describe the system and recent results of radio source monitoring.
那须天文台的自动射电爆发搜索系统
DOI：
--
发表时间：
2006
期刊：
Publications of the Astronomical Society of the Pacific Vol.118, N844
影响因子：
--
作者：
M.Kuniyoshi;T.Daishido;K.Asuma;Matsumura;Takefuji;K.Niinuma
通讯作者：
K.Niinuma