Aiming at the problems of poor adaptability and low secret key generation rate of secret key generation scheme based on single characteristic parameter of wireless channel, a secret key generation method based on joint characteristic parameters of amplitude and phase of wireless channel is proposed. This method is based on the single-eavesdropping wireless fading channel model; the joint characteristic model of amplitude and phase of wireless fading channel is established; it detects and extracts the joint characteristic parameters of amplitude and phase of channel, and then the proposed characteristics are quantified by using the equal probability joint quantization strategy of amplitude and phase to generate the secret key random parameters. In this paper, the amplitude and phase joint feature parameter detection method of wireless channel can not only improve the generation rate of random secret key parameters but also make the eavesdropping party’s eavesdropping error rate closer to 0.5. The test results show that the proposed scheme can significantly improve the rate, reliability, and security of generating key random parameters.

中文翻译：

---

一种检测无线信道幅相联合特征参数的关键参数生成方法

针对基于无线信道单个特征参数的密钥生成方案适应性差，密钥生成率低的问题，提出了一种基于无线信道幅度和相位联合特征参数的密钥生成方法。该方法基于单窃听无线衰落信道模型。建立了无线衰落信道幅度和相位的联合特征模型。它检测并提取通道的幅度和相位联合特征参数，然后使用等概率联合幅度和相位联合量化策略对提出的特征进行量化，以生成秘密随机参数。在本文中，无线信道的幅度和相位联合特征参数检测方法，不仅可以提高随机密钥参数的生成率，而且可以使窃听者的窃听错误率接近0.5。测试结果表明，该方案可以显着提高密钥随机参数生成的速度，可靠性和安全性。