摘要
射频数字化接收机去掉了模拟变频部分电路,简化了射频前端设计。由于其组成特点的变化,原用于计算模拟接收机灵敏度的方法不再完全适用于该体制接收机。对射频数字化接收机的灵敏度计算方法进行了研究,给出了这种接收机噪声系数的计算模型及计算公式,并将计算结果与实际射频数字化接收机的测量结果进行了比较。
The circuit of analog tuner is removed from the RF （Radio Frequency） digitization receiver, so that the RF front is greatly simplified in this kind of receiver. In this case, the old method to calculate the sensitivity of analog receiver does not apply any more. A new way to calculate the sensitivity of RF digitization receiver is proposed in this paper together with the calculation model and calculation formula. The calculating result is then compared with measuring result obtained from two different RF digitization receivers.
出处
《通信对抗》
2016年第2期20-22,共3页
Communication Countermeasures
