## 1 Introduction
[24] have also achieved PPP timing using the IGS real-time stream. Their method is not limited by the real-time precise orbit products of any analysis center and is applicable to various IGS real-time streams, with an accuracy that can reach the sub-nanosecond level. Moreover, the reliability of real-time products is often contingent upon the stability of internet connections, which, if erratic, can readily trigger the re-convergence of receiver clock parameters. This susceptibility underscores the need for robust and consistent data transmission to ensure the integrity of real-time PPP applications. [PERSON] et al. [19] have further studied that the receiver clock offset model can further enhance real-time PPP time transfer, reduce the frequency of re-convergence, and at the same time reduce the noise of receiver clock offset, thereby improving the accuracy of real-time PPP time transfer. Nevertheless, the transmission of correction data via the internet continues to pose challenges to the reliability of PPP time transfer. Fortunately, the current BeiDou-3 satellites provide a precise point positioning service (PPP-B2b) through the B2b signal in the Asia-Pacific region [25, 26], and Galileo also offers a high-precision service (HAS) globally [27]; both of these services directly broadcast correction data to users through satellite signals. HAS is the European free PPP service provided by Galileo. On 24 January 2023, the European Commission announced the start of its initial services. The message provides orbit, clock, code biases, and soon phase biases for Galileo E1-E5a-E5b-E6 and GPS L1C/A-L2C signals. The message corrects the Galileo I/NAV and GPS LNAV L1 C/A combinations and is transmitted in the Galileo E6 signal (E6-B data component) and through the Galileo HAS internet data distribution (IDD). With the aforementioned two services, users can directly achieve PPP time transfer without the internet, and the reliability is better. [PERSON] et al. [7] have evaluated and analyzed real-time BDS-3 PPP time transfer via the PPP-B2b service, achieving a real-time PPP time transfer accuracy of 0.3 ns. [PERSON] et al. [27] and [PERSON], et al. [28] have conducted a preliminary analysis of Galileo PPP time transfer through the Galileo HAS and have achieved a time transfer accuracy of 0.5 ns, although scholars have achieved BDS-3 or Galileo PPP time transfer without a network environment. However, current research mainly focuses on PPP time transfer or timing in static models. With the rapid development of unmanned systems and intelligent driving, real-time kinematic high-precision timing methods have become an extremely urgent need. To this end, this paper intends to establish a real-time Galileo/GPS integrated PPP time transfer in a kinematic model using the Galileo HAS service to meet the high-precision timing needs of current intelligent systems or unmanned systems. The layout of this paper is outlined as follows: The second section presents the fundamental theory behind real-time PPP time transfer in a kinematic model. In the third section, the strategies used in the experiment and the data used are introduced. In the fourth part, six time links are used to evaluate and verify the real-time PPP time transfer in a kinematic model pointed out in this paper. Finally, some conclusions and discussions are given.