What this category of data looks like
Satellite communications investment research data primarily comes from International Telecommunication Union frequency allocation documents, public operational reports from satellite operators, industry technical standard documents, and real-time orbit monitoring data. There are two update frequency categories: static parameters such as frequency allocation rules and orbit coordinate benchmarks are updated quarterly, while dynamic data such as signal coverage range and link delay is synchronized hourly. Documents include structured parameter tables, long-form technical specifications, and PDF-format industry white papers. Fields include orbital inclination (unit: degrees), downlink frequency (unit: GHz), coverage area (unit: square kilometers), signal transmission delay (unit: milliseconds), and more.
What constraints these characteristics impose on the knowledge base retrieval and recall workflow
Satellite communications investment research data has a high proportion of static parameters and fast-updating dynamic data. This requires the retrieval system to support both precise matching of fixed rules and real-time synchronized link data. Structured parameter tables account for a large share of the data, so the retrieval system must avoid truncating parameter rows, which causes missing fields and reduces retrieval matching accuracy. Each field has a dedicated unit, so the retrieval process must associate unit verification to avoid invalid recalls across different units. Dynamic data has strict timeliness requirements: the recall link must filter redundant data beyond its update cycle, while retaining the ability to retrieve historical reference documents.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
top_k | Top 10-15 entries | Satellite communications investment research data includes multi-dimensional parameters, so enough matching samples must be covered to avoid missing key field combinations |
similarity_threshold | 0.72-0.85 | Structured parameters require high matching accuracy, filter low-similarity irrelevant documents, and meet the strict requirements of investment research |
chunk_size | 800-1200 characters | Balance the integrity of long-form technical specifications and parameter tables, avoid truncating parameter rows and causing missing fields |
rerank_top_k | Top 5-8 entries | Filter high-matching results and reduce the result screening cost for investment research personnel |
enable_field_match | Enabled | Support precise matching by field name, adapt to structured parameter retrieval for satellite communications-specific fields such as orbit and frequency |
refresh_interval | 3600 seconds | Match the update frequency of dynamic link data, ensure the timeliness of recall results |
The parameter values provided on this page are common recommended starting points for configuring settings. Actual values are affected by material format, data volume, and business rules. Specific issues require individual analysis. It is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Phenomenon: A query with text exactly matching a chunk in the knowledge base fails to recall the corresponding result, or only returns low-similarity results. Cause: The exact match trigger configuration is not enabled, or the similarity threshold is set too high, causing the exact match logic to not take effect.
- Phenomenon: Retrieval results do not display knowledge base citation sources, or citation source fields are empty. Cause: The citation display configuration item is not enabled, or metadata information is not correctly extracted during document parsing.
- Phenomenon: A
400 Bad Requesterror is returned when attempting to add new information to the knowledge base during a conversation. Cause: The automatic knowledge base synchronization switch after conversation is not configured, or the format of the newly uploaded data does not meet the structured requirements of satellite communications documents.
How to confirm the configuration is correct
- Upload a satellite communications document containing an orbit parameter table, execute a query including the orbital inclination keyword, and verify whether the returned results include the corresponding parameter row.
- Submit a query that includes a clear unit, such as "10GHz downlink frequency", and verify whether the recall results associate fields with the corresponding unit.
- Manually trigger a knowledge base refresh, wait for the preset refresh interval, then query keywords related to dynamic data, and verify whether the results include the latest data.
- Enable debug mode, view the core configuration parameter values in the retrieval log, and confirm they match the preset configuration.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.