The DvBei DBS-08L series of compact navigation signal sources are primarily used to generate satellite navigation simulation signals for positioning.

They are designed as auxiliary supporting equipment for the research, development, debugging, testing, and production of navigation receiver terminals. Compact and portable, they can simultaneously support up to six signals from all civilian signals of the BDS/GPS/GLONASS/Galileo navigation systems.

1. Product Features

• The DvBei DBS-08L series can generate multi-system full-frequency satellite navigation signals for BDS/GPS/GLONASS/Galileo;

• For applications such as high-precision positioning and integrity monitoring, the DvBei DBS-08L series has the capability to simulate special requirements such as signal quality anomalies, non-ideal transmit/receive channels, complex multipath environments, and ionospheric dispersion effects.

• The DvBei DBS-08L series is compact, portable, and easy to use.

2.Application Areas

Navigation terminal product testing, navigation discipline teaching.

3. Functional Features

• Supports all navigation signals from the BDS/GPS/GLONASS/GALILEO systems;

• Customizable expansion of BDS authorization signals; the authorization signal module requires user application;

• Comprehensive constellation and carrier control, with diverse motion and propagation models;

• Supports SBAS simulation;

• Supports multiple standard input/output data formats: RINEX format ephemeris, YUMA format almanac, etc.;

• Supports multipath signal simulation;

• Test mode supports various pseudorange models, such as stationary, uniform velocity, uniform acceleration, sine, etc.;

• Supports various typical user dynamics, including uniform velocity, uniform acceleration, sinusoidal, circular motion, as well as common

ship, vehicle, and aircraft trajectories;

• Supports importing external trajectory files;

• Supports injecting external trajectory data;

• Supports data recording and output, including carrier data, satellite data, signal data, navigation messages, and ephemeris

information.

5. Performance Indicators

5.1. Signal Types

BDS: B1I, B3I, B1C, B2a, B2b;

GPS: L1C/A, L1C, L2C, L5;

Galileo: E1, E5a, E5b;

GLONASS: G1, G2;

QZSS: L1, L5;

IRNSS: L5, S;

SBAS: WAAS, EGONS, MSAS.

5.2. Number of Supported Signals

Up to 3 signals can be selected.

5.3. Number of Signal Channels

16 channels. (GNOLASS has 12 signal channels.)

5.4. Signal Dynamic Parameters

Maximum altitude: ≥100 km;

Maximum velocity: ±3000 m/s;

Velocity resolution: ≤0.01 m/s;

Maximum acceleration: ±800 m/s²;

Acceleration resolution: ≤0.01 m/s²;

Maximum jerk: ±800 m/s³;

Jerk resolution: ≤0.01 m/s³.

5.5. Phase noise: -75 dBc/Hz @ 100 Hz; -80 dBc/Hz @ 1 kHz; -85 dBc/Hz @ 10 kHz; -95 dBc/Hz @ 100 kHz.

5.6. Signal accuracy:

Pseudo-range accuracy: ±0.1 m;

Pseudo-range change rate accuracy: ±0.01 m/s.

5.7  Signal Quality:

Spurious Suppression (In-Band): ≤-40 dBc;

Harmonic Suppression (Second-Order): ≤-40 dBc.

5.8. Signal Power

Power Range: -70 dBm to -40 dBm;

Power Resolution: ≤0.5 dB;

Power Accuracy: ≤1 dB (RMS);

Linearity: ≤1 dB;

5.9. Time-Frequency Reference:

Frequency Stability: ≤5 × 10⁻¹¹/s;

Frequency Accuracy: ≤5 × 10⁻⁸.

5.10. Power Characteristics

Input Voltage: DC 15 to 32 V, with a 220 V AC power adapter provided;

Power Consumption: ≤25 W.