In this paper, error of quadrature vector detector used in direct converting receiver is analyzed and performance deterioration caused by gain error, phase error, local oscillation leak or DC offset on receiver's inphase and quadrature channels is discussed. 本文对直接变频接收机中正交矢量检测法进行了误差分析,讨论了由于接收机同相与正交两支路的增益差异、相位误差、本振泄漏及直流偏置导致其性能恶化的结果。
The so-called anonymity means that the adversary could not distinguish the ciphertexts, which are encrypted from the same message by different identities. That is, the ciphertext should not leak the identity of the receiver. 所谓匿名性是指敌手不能区分用不同身份进行加密的同一则消息的密文,即密文不能泄露接收者的身份。