型號：LS-28-EC-QRS
Version:0.9 StartHTML:0000000105 EndHTML:0000004655 StartFragment:0000000141 EndFragment:0000004615 The Lumistar LS-28-EC-QRS Economy Chassis Dual Receiver/Combiner System offers a low-cost high-performance COTS solution for a modern Telemetry Ground Station Receiving System.
The LS-28-EC-QRS is an advanced technology “Quad” Receiver/Combiner employing sophisticated fourth generation Digital Signal Processing (DSP) technologies. The LS-28-EC-QRS supports independent four channel reception and/or combining of up to four RF bands, such as E, S, lower/upper-L, P, K, or custom bands up to 7 GHz. The RF inputs are processed by two Lumistar LS-27 series dual channel quad band PCI-based tuner card that acquires
and downconverts the signals to a 70 MHz intermediate frequency (IF). These IF signals are then digitized by two LS-35-R twochannel digital IF receiver. The IF receiver offers pre-D combining or routes the data directly to a multi-mode dual demodulator for two independent channel operation. The digital multi-mode demodulation options include Multi-Symbol PCM/FM, SOQPSK, BPSK, QPSK, OQPSK, AQPSK,
PCM/PM, Sub-carrier(s)). Demodulated data is bit synchronized to TTL and RS-422 data/clock outputs, including PCM code conversions. Optional post-D combining is available. Standard features such as Constellation diagram displays, IF spectral displays, bit error reader and onboard 70 MHz modulator are included at no additional cost. Since telemetry data is not routed through the system’s PCI bus, the LS-28-EC-QRS can process high data rate streams with no impact to the processing load of the CPU.
