NOVOTNÝ, J. Optické komunikacni site v hlubokem vesmiru [online]. Brno: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. 2025.
The master thesis deals with the conceptual analysis of application of optical links in deep-space optical communications links. The student approaches the topic methodically and appropriately to the technology readiness level. In the first stage of the thesis, the existing technologies and concepts are elaborated and discussed. The analysis is followed by a synthesis and finally the presentation of results. Unfortunately, the supervisor´s personal experience of the quality of the work done was not reflected appropriately in the text. This lacks at several instances the appropriate reasoning and justification as well as derivation of the model used to produce the final results. This diminishes appropriate independent model validation. Besides the technical quality of the text, the main formal complaint is the improper integration of the referencing in the final document. Due to that, I strongly suggest the thesis to be considered not defended and to the student to improve both the content and formal side of the text and to resubmit the thesis for defence at a later date.
The diploma thesis focuses on the analysis of the potential implementation of deep space optical communication networks. The first part of the thesis summarizes the current state of the art and describes the individual building blocks of a laser communication system. In the following section, the student proposes the overall system architecture. In the final part, the student presents the power budget, throughput calculation of the proposed link, and results from a simulation program. What I particularly appreciate in this work is the simulation tool, which, based on the given system parameters, can propose an architecture and calculate the power budget of a deep space laser communication system. The topic is very current and interesting; however, I would have expected a more detailed commentary on the obtained results in Chapter 3. I would also welcome a description of the simulation program, for example, in the form of a flowchart with a detailed explanation of each functional block. From a formal point of view, I have several comments. The abstract is rather short. Figure 3.1 is distorted and of poor quality. Figures 3.3 to 3.6, which present the main results of the thesis, are too small and unreadable. Most figures lack proper citations. The main shortcoming of the thesis is the presence of non-functional citations throughout the document and their incorrect formatting. Although the thesis assignment has been fulfilled, formal issues that prevent its publication lead me to propose an overall grade of F.
eVSKP id 167782