File List¶

Here is a list of all files with brief descriptions:

• dir native
  • dir inc
    • file clib_common.h
    • file doppler.h
    • file dp_crc16.h CRC-16-CCITT over a bit stream — the one CRC shared by every doppler frame producer and consumer.
    • file dp_format.h Complex sample formats, named by their BLUE/Platinum codes.
    • file dp_interleave.h Block interleaving — the permutation, and nothing else.
    • file dp_interrupt.h Asking a blocking wait to stop, whatever it is waiting on.
    • file dp_interrupt_pyadopt.h
    • file dp_isotime.h ISO 8601 UTC timestamps in both spellings — filename-safe basic for names doppler writes,extended for the wire formats that mandate it.
    • file dp_parallel.h
    • file dp_simd.h doppler's own composite SIMD reductions, layered over jm_simd.h .
    • file dp_state.h
    • file dp_state_pyhelp.h
    • file dp_syncword.h Finding a known bit pattern in an unpacked bit stream — the sync word search, and the arithmetic for choosing its threshold.
    • file jm_perf.h
    • file jm_simd.h
    • dir HalfbandDecimator
      • file HalfbandDecimator_core.h Halfband 2:1 decimator for CF32 IQ (adapter over hbdecim_core).
    • dir RateConverter
      • file RateConverter_core.h Optimal-speed rate conversion cascade.
    • dir Resampler
      • file Resampler_core.h Continuously-variable polyphase resampler, CF32 IQ.
    • dir acc_cf64
      • file acc_cf64_core.h AccCf64 component API.
    • dir acc_f32
      • file acc_f32_core.h AccF32 component API.
    • dir acc_q15
      • file acc_q15_core.h AccQ15 — a running 64-bit integer accumulator for Q15 (int16_t) samples. Internally sums each sample into a 64-bit accumulator, which prevents overflow even for very long block lengths. Use get() to read the running total non-destructively, or dump() to read-and-reset in one call.
    • dir acc_q8
      • file acc_q8_core.h AccQ8 — a running 32-bit integer accumulator for Q8 (int8_t) samples. Internally sums each sample into a 32-bit accumulator, which can hold up to 2^24 maximum-magnitude Q8 samples before overflow. Use get() for a non-destructive read, or dump() to read-and-reset in one atomic call.
    • dir acc_trace
      • file acc_trace_core.h AccTrace — per-bin vector trace accumulator.
    • dir accumulator
      • file accumulator_core.h Accumulator module — public C API.
    • dir acq
      • file acq_core.h Streaming DSSS acquisition engine — burst and continuous front doors over one shared engine.
    • dir acquire
      • file acquire_core.h Acquire module — public C API.
    • dir adc
      • file adc_core.h Signed two's-complement ADC model.
    • dir agc
      • file agc_core.h Log-domain automatic gain control (AGC).
    • dir analyzer
      • file analyzer_core.h Analyzer module — public C API.
    • dir arith
      • file arith_core.h Arith module — public C API for fixed-point arithmetic on Q15 (int16_t) and Q8 (int8_t) arrays. All elementwise operations write into a caller-supplied output buffer of the same length as the shorter input. Saturation clamps results to the representable range rather than wrapping, matching the two's-complement DSP convention.
    • dir async_dsss_pool
      • file async_dsss_pool_core.h AsyncDsssPool one object holds the population: a searcher, a pool of hand-off receivers, the assigned table and the event log (docs/design/async-dsss-receiver.md section 8.2).
    • dir async_dsss_receiver
      • file async_dsss_receiver_core.h Composed continuous DSSS receiver: Acquisition -> handoff -> CarrierAcquisition refine -> Costas/Dll/RateConverter/ MpskReceiver track, one object.
    • dir awgn
      • file awgn_core.h Additive White Gaussian Noise generator.
    • dir ber
      • file ber_core.h Error-rate measurement: settled windows, detected alignment, and an exact confidence interval.
    • dir ber_meter
      • file ber_meter_core.h BerMeter — the error-rate accumulator.
    • dir boxcar
      • file boxcar_core.h Boxcar (rectangular) moving-average filter — cf32, fixed window.
    • dir buffer
      • file buffer.h High-performance x86-64 Circular Buffer for RF Streaming.
    • dir burst_acq
      • file burst_acq_core.h BurstAcquisition — thin forwarder onto acq_core.c's shared engine.
    • dir burst_capture
      • file burst_capture_core.h BurstCapture — acquisition's output turned into aligned bursts.
    • dir burst_demod
      • file burst_demod_core.h Feedforward BPSK DSSS frame demodulator.
    • dir burst_despreader
      • file burst_despreader_core.h BurstDespreader component API.
    • dir carrier_acq
      • file carrier_acq_core.h CarrierAcquisition — PSDMF residual-carrier frequency refinement.
    • dir carrier_mpsk
      • file carrier_mpsk_core.h M-PSK carrier-tracking loop (integer-NCO de-rotation + decision PLL).
    • dir carrier_nda
      • file carrier_nda_core.h Non-data-aided (NDA) M-th-power carrier-tracking loop.
    • dir ccsds
      • file ccsds_core.h CCSDS 131.0-B's published literals, as a Python-facing component.
    • dir ccsds_tm
      • file ccsds_tm.h CCSDS TM channel coding — the transforms a transfer frame passes through on its way to symbols.
      • file ccsds_tm_frame.h The CCSDS frame assembler — where the ASM goes, and the one place the stages' disagreements about what they cover become visible.
      • file ccsds_tm_rs.h CCSDS Reed-Solomon (255,223) — the outer code as a CONFIGURATION, and the conventions that only a published value catches.
    • dir cic
      • file cic_core.h CIC decimation filter — 4-stage, M=1, UQ16 integer pipeline.
    • dir coding
      • file coding_core.h Coding module — public C API.
    • dir conv
      • file conv_core.h Convolutional codes: the code description, the encoder, and the maximum-likelihood decoder that reads the same description.
    • dir conv_enc
      • file conv_enc_core.h The convolutional encoder, as a stateful object over conv .
    • dir corr
      • file corr_core.h 1-D FFT-based cross-correlator with coherent integrate-and-dump.
    • dir corr2d
      • file corr2d_core.h 2-D FFT-based cross-correlator with coherent integrate-and-dump.
    • dir costas
      • file costas_core.h Costas carrier-tracking loop (integer-NCO de-rotation + PI loop).
    • dir cvt
      • file cvt_core.h Cvt module — public C API.
    • dir ddc
      • file ddc_core.h Digital Down-Converter — composes LO + RateConverter cascade.
    • dir ddcr
      • file ddcr_core.h Real-input Digital Down-Converter — halfband R2C + LO + cascade.
    • dir delay
      • file delay_core.h Delay component API.
    • dir despreader
      • file despreader_core.h Continuous DSSS despreader — Costas carrier loop + DLL code loop.
    • dir detection
      • file detection_core.h Detection-theory utilities for the amplitude-ratio test statistic.
    • dir detector
      • file det_private.h Shared internals for detector_core.c and detector2d_core.c.
      • file detector_core.h 1-D streaming signal detector with FFT-based correlation, integrate-and-dump, and configurable noise-referenced threshold.
    • dir detector2d
      • file detector2d_core.h 2-D streaming signal detector with FFT2D-based correlation, integrate-and-dump, and configurable noise-referenced threshold.
    • dir dll
      • file dll_core.h Delay-lock loop (DLL) — non-coherent early/prompt/late code tracking.
    • dir doppler_channel
      • file doppler_channel_core.h Clock Doppler as a propagation impairment: dilate the time base and shift the carrier, coherently, from one physical parameter.
    • dir dp_event_log
      • file dp_event_log_core.h A run's events as SigMF annotations: appended live, finalized at close.
    • dir dp_interrupt_guard
      • file dp_interrupt_guard_core.h
      • file dp_interrupt_guard_procglobal.h
    • dir dp_tlm
      • file dp_tlm_core.h Lightweight scalar telemetry taps for running DSP objects.
    • dir dp_tlm_capture
      • file dp_tlm_capture_core.h Lossless telemetry capture: sized by arithmetic, not by guesswork.
    • dir dsss
      • file dsss_core.h Dsss module — public C API.
    • dir dsss_burst_receiver
      • file dsss_burst_receiver_core.h DsssBurstReceiver — the burst chain composed in C.
    • dir dsss_receiver
      • file dsss_receiver_core.h Composed continuous DSSS receiver: Acquisition -> Costas(bn_fll) pre-despread carrier wipeoff -> Dll(segments) -> RateConverter -> MpskReceiver, one object.
    • dir f32_to_i16
      • file f32_to_i16_core.h Scale-and-saturate float-to-int16 converter.
    • dir f32_to_i16u32
      • file f32_to_i16u32_core.h Scale-and-saturate float to Q15-in-uint32 converter.
    • dir f32_to_i16u64
      • file f32_to_i16u64_core.h Scale-and-saturate float to Q15-in-uint64 converter.
    • dir f32_to_uq15
      • file f32_to_uq15_core.h Scale-and-saturate float-to-UQ15 (offset-binary uint16) converter.
    • dir farrow
      • file farrow_core.h Farrow fractional-delay interpolator — linear / parabolic / cubic.
    • dir fft
      • file fft_core.h Per-instance 1-D FFT using pocketfft directly.
    • dir fft2d
      • file fft2d_core.h Per-instance 2-D FFT using pocketfft directly.
    • dir filter
      • file filter_core.h Filter module — public C API.
    • dir fir
      • file fir_core.h Direct-form FIR filter — real-tap and complex-tap variants.
    • dir frame
      • file frame_core.h A frame's bit layout, held as an object so Python can describe one.
    • dir frame_meter
      • file frame_meter_core.h Frame outcomes accumulated across a record: FER, and sync detection.
    • dir gold
      • file gold_core.h Gold code component API.
    • dir hbdecim
      • file hbdecim_core.h Halfband 2:1 decimator for CF32 IQ samples.
      • file hbdecim_r2c_core.h Real-to-complex halfband 2:1 decimator (Architecture D2).
    • dir hbdecim_q15
      • file hbdecim_q15_core.h Fixed-point halfband 2:1 decimator for interleaved IQ int16 samples.
    • dir i16_to_f32
      • file i16_to_f32_core.h int16-to-float converter with configurable inverse scale.
    • dir i16u32_to_f32
      • file i16u32_to_f32_core.h Q15-in-uint32 to float converter.
    • dir i16u64_to_f32
      • file i16u64_to_f32_core.h Q15-in-uint64 to float converter.
    • dir i32_to_f32
      • file i32_to_f32_core.h int32-to-float converter with configurable inverse scale.
    • dir i8_to_f32
      • file i8_to_f32_core.h int8-to-float converter with configurable inverse scale.
    • dir imdmeas
      • file imdmeas_core.h IMDMeasure — two-tone intermodulation (IMD2/IMD3) and intercept.
    • dir impairment
      • file impairment_core.h Impairment module — public C API.
    • dir interleaver
      • file interleaver_core.h Block interleaving as an object — the geometry, held.
    • dir interp
      • file interp_core.h Interp module — public C API.
    • dir interp_table
      • file interp_table_core.h Periodically-extended interpolated lookup table.
    • dir interrupt
      • file interrupt_core.h Interrupt module — public C API.
    • dir lo
      • file lo_core.h Local oscillator: NCO + 2^16 sin/cos LUT → CF32 phasors.
    • dir lockdet
      • file lockdet_core.h Portable lock detector — level + time hysteresis over any scalar lock metric, embeddable in every loop that makes a lock decision.
    • dir loop_filter
      • file loop_filter_core.h Second-order proportional-integral loop filter — the shared engine of every tracking loop (Costas/PLL, DLL, symbol timing).
    • dir measure
      • file measure_core.h Measure module — shared result structs and module-level helpers.
    • dir mpsk
      • file mpsk_core.h M-PSK constellation: Gray-coded map / demap for BPSK, QPSK, 8PSK.
    • dir mpsk_receiver
      • file mpsk_receiver_core.h Pulse-shaped M-PSK receiver: a tuned matched front end and two loops.
      • file mpsk_rx_loops.h The two loops an M-PSK receiver closes, independent of its front end.
    • dir nco
      • file nco_core.h Phase-accumulator NCO, and the one float->integer boundary everything that steers one has to pass through.
    • dir nprmeas
      • file nprmeas_core.h NPRMeasure — notched-noise Noise Power Ratio.
    • dir pn
      • file pn_core.h PN component API.
    • dir ppe
      • file ppe_core.h Feedforward polynomial-phase estimator (frequency + chirp rate).
    • dir psd
      • file psd_core.h PSD — averaging power-spectral-density estimator (Welch's method) and spectral measurement suite.
    • dir ratesync
      • file ratesync_core.h RateSync — symbol-timing recovery on a matched-filter rate cascade.
    • dir resamp
      • file resamp_core.h Continuously-variable polyphase resampler for CF32 IQ.
      • file resamp_impl.h Resamp implementation header.
    • dir resample
      • file resample_core.h Resample module — public C API.
    • dir rs
      • file rs_core.h Reed-Solomon codes: the code description, the encoder, the syndromes and the decoder that corrects — all reading the same description.
    • dir rs_codec
      • file rs_codec_core.h The Reed-Solomon codec, as an object over rs .
    • dir snr
      • file snr_core.h Stateless SNR / Es-N0 estimators, data-aided and non-data-aided.
    • dir source
      • file source_core.h Source module — public C API.
    • dir specan
      • file specan_core.h Specan — natural-parameter spectrum analyzer (DDC + averaging PSD).
    • dir spectral
      • file spectral_core.h Spectral module — public C API.
    • dir stream
      • file stream.h Streaming API for doppler — PUB/SUB, PUSH/PULL, REQ/REP.
      • file tlm_sink.h NATS PUB sink for telemetry records.
    • dir symsync
      • file symsync_core.h SymbolSync component API.
    • dir syncword
      • file syncword_core.h Frame synchronisation: find a known marker in a bit stream, and choose the threshold that decides what counts as finding it.
    • dir telemetry
      • file telemetry_core.h Telemetry module — public C API.
    • dir timing
      • file timing_core.h
    • dir tonemeas
      • file tonemeas_core.h ToneMeasure — single-tone ADC/converter spectral measurement.
    • dir track
      • file track_core.h Track module — public C API.
    • dir uq15_to_f32
      • file uq15_to_f32_core.h UQ15 (offset-binary uint16) to float converter.
    • dir util
      • file util_core.h Util module — public C API.
    • dir viterbi
      • file viterbi_core.h Soft-decision Viterbi decoding of convolutional codes.
    • dir wfm
      • file wfm_compose.h Multi-segment waveform composer (Phase B).
      • file wfm_core.h Wfmgen module — public C API.
      • file wfm_defaults.h
      • file wfm_dsp.h DSSS spreading + root-raised-cosine pulse shaping (Phase B).
      • file wfm_frame.h A frame's BIT layout, described once and read from both ends.
      • file wfm_keywords.h BLUE extended-header keywords — the X-Midas binary tag/value codec.
      • file wfm_names.h
      • file wfm_path.h Sibling-path construction shared by the wfm reader and writer.
      • file wfm_plan.h
      • file wfm_sink.h NATS PUB sink for generated IQ (Phase B).
      • file wfm_time.h
      • file wfmgen.h
    • dir wfm_compose
      • file wfm_compose_bridge.h
    • dir wfm_reader
      • file wfm_reader_core.h Input file types for generated IQ — the dual of wfm_writer.
    • dir wfm_synth
      • file wfm_synth_core.h Synth component API.
    • dir wfm_writer
      • file wfm_writer_core.h Output file types for generated IQ: raw / csv / BLUE-1000 + SigMF meta.
    • file q15_mac.h Static inline Q15 dot-product primitives: scalar fallback and AVX2.