Files
Look4Sat-BA7OPF/README.md
T
atsunatsu 9e7fdbfe71 fix: passband RX update now uses full Doppler round-trip instead of pure passband mapping
When adjusting RX in passband mode (via +/- buttons or slider), the old
code used TransponderMapper.mapDownlinkToUplink (pure passband mapping
without Doppler compensation), producing ~10kHz error at LEO velocities.

Fix: use DopplerFrequencyCalculator.computeUplinkFromDownlinkWithOffset
for the full TX-from-RX round-trip, matching the RX→PASSBAND button
onClick logic. Also fixed frame mismatch: position now uses txLow/txRange
(Doppler-shifted frame) consistently.
2026-08-19 22:19:14 +08:00

37 lines
1.8 KiB
Markdown

# Look4Sat-BA7OPF
[![Release](https://img.shields.io/github/v/release/atsunatsu/Look4Sat)](https://github.com/atsunatsu/Look4Sat/releases)
**BA7OPF 定制版** — 基于 [rt-bishop/Look4Sat](https://github.com/rt-bishop/Look4Sat) 的业余无线电卫星追踪器,增加了线性卫星频率计算器等功能。
## 本仓库特色功能
- **线性卫星转发器频率计算器** — 在雷达页的 Calculator 标签页中,支持 TX/RX 双向多普勒频率计算,以及下行频率偏移(offset)输入,方便操作带偏移的线性卫星
- **CW 解码器** — 集成 Morse Expert 解码引擎,支持瀑布图、实时解码文本
- **Passband 模式** — 支持通过位置滑块(Passband)自动计算 TX/RX 频率,避免切换时跳变
- **中文界面优化** — 翻译修正、UI 布局调整
## 上游仓库
本仓库是 [rt-bishop/Look4Sat](https://github.com/rt-bishop/Look4Sat) 的分支,上游仓库的原始功能包括:
- 基于 Celestrak / SatNOGS 数据的 9000+ 活跃卫星追踪
- SGP4/SDP4 轨道预测,10 天过境预报
- 极坐标雷达图、地面轨迹图
- SSTV 图像解码
- 无广告、无跟踪、完全离线
## 许可证
GNU General Public License v3.0。详见 [LICENSE](LICENSE)。
## Star History
<a href="https://star-history.dera.page/#atsunatsu/Look4Sat&type=timeline&legend=top-left">
<picture>
<source media="(prefers-color-scheme: dark)" srcset="https://star-history.dera.page/svg?repos=atsunatsu/Look4Sat&type=timeline&theme=dark&legend=top-left" />
<source media="(prefers-color-scheme: light)" srcset="https://star-history.dera.page/svg?repos=atsunatsu/Look4Sat&type=timeline&legend=top-left" />
<img alt="Star History Chart" src="https://star-history.dera.page/svg?repos=atsunatsu/Look4Sat&type=timeline&legend=top-left" />
</picture>
</a>